Dual citizens are citizens of more than one state.  It also refers to citizenship status.

 

The concept of dual citizenship is widely accepted by many countries in America, Europe while in Asia and Africa it is less tolerant. The citizenship laws vary by country are quite complicated in terms of birth, marriage, naturalization and for children.   Some countries prohibit dual citizenship holders from serving in their militaries or on police forces or holding certain public offices.

 

Some countries such as Russia, South Africa require prior permission before becoming a dual citizen. China, India, Saudi Arabia, Bahrain, Malaysia, Japan, Singapore, UAE etc. are hostile towards dual citizenship.

 

Dual citizenship persons can travel with two passports, although this is common trend. For example US dual citizens are required to use US passports when crossing borders.

 

Here are the list of 163 countries, where dual citizenship is allowed and prohibited, as of 2018.

 

Country Dual citizenship
Afghanistan Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Albania Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Algeria Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Andorra Not allowed. Automatic loss of citizenship of origin country.
Angola Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Argentina Allowed No automatic loss of birthright citizenship of origin country, and renunciation of citizenship of origin country is not possible. Automatic loss of citizenship of origin country for persons who have acquired citizenship of origin country by naturalisation.
Armenia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Australia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Austria Not allowed. Automatic loss of citizenship of origin country, and the origin country is Party to Chapter 1 of the Strasbourg Convention.3
Azerbaijan Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Bahamas Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Bahrain Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Bangladesh Not allowed. Automatic loss of citizenship of origin country.
Barbados Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Belarus Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Belgium Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Belize Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Benin Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Bhutan Not allowed. Automatic loss of citizenship of origin country.
Bolivia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Botswana Not allowed. Automatic loss of citizenship of origin country.
Brazil Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Brunei Not allowed. Automatic loss of citizenship of origin country.
Bulgaria Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Burundi Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Cambodia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Cameroon Not allowed. Automatic loss of citizenship of origin country.
Canada Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Chad Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Chile Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
China Not allowed. Automatic loss of citizenship of origin country.
Colombia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Comoros Allowed. No automatic loss of birthright citizenship of origin country, but renunciation of citizenship of origin country is possible. Automatic loss of citizenship of origin country for persons who have acquired citizenship of origin country by naturalisation.
Congo Democratic Republic Not allowed. Automatic loss of citizenship of origin country.
Congo Republic Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Croatia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Cuba Not allowed. Automatic loss of citizenship of origin country.
Cyprus Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Denmark Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Djibouti Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Dominica Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Ecuador Allowed. No automatic loss of citizenship of origin country. Renunciation of citizenship of origin country is only possible for persons who have acquired citizenship of the origin country by naturalisation.
Egypt Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Eritrea Allowed. No automatic loss of citizenship of origin country, and renunciation of citizenship of origin country is not possible.
Estonia Not allowed. Automatic loss of citizenship of origin country.
Ethiopia Not allowed. Automatic loss of citizenship of origin country.
Fiji Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Finland Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
France Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Gabon Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Gambia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Georgia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Germany Not allowed. Automatic loss of citizenship of origin country.
Ghana Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Greece Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Grenada Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Guatemala Allowed No automatic loss of birthright citizenship of origin country, and renunciation of citizenship of origin country is not possible. Automatic loss of citizenship of origin country for persons who have acquired citizenship of origin country by naturalisation.
Guinea Not allowed. Automatic loss of citizenship of origin country.
Guinea-Bissau Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Guyana Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Haiti Allowed. No automatic loss of citizenship of origin country. Renunciation of citizenship of origin country is only possible for persons who have acquired citizenship of the origin country by naturalisation.
Honduras Allowed No automatic loss of birthright citizenship of origin country, and renunciation of citizenship of origin country is not possible. Automatic loss of citizenship of origin country for persons who have acquired citizenship of origin country by naturalisation.
Hungary Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Iceland Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
India Not allowed. Automatic loss of citizenship of origin country.
Indonesia Not allowed. Automatic loss of citizenship of origin country.
Iran Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Iraq Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Ireland Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Israel Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Italy Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Jamaica Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Japan Not allowed. Automatic loss of citizenship of origin country.
Jordan Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Kazakhstan Not allowed. Automatic loss of citizenship of origin country.
Kenya Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Kiribati Allowed. No automatic loss of birthright citizenship of origin country, but renunciation of citizenship of origin country is possible. Automatic loss of citizenship of origin country for persons who have acquired citizenship of origin country by naturalisation.
Kuwait Not allowed. Automatic loss of citizenship of origin country.
Kyrgyzstan Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Laos Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Latvia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Lebanon Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Lesotho Not allowed. Automatic loss of citizenship of origin country.
Liberia Not allowed. Automatic loss of citizenship of origin country.
Libya Not allowed. Automatic loss of citizenship of origin country.
Liechtenstein Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Lithuania Not allowed. Automatic loss of citizenship of origin country.
Luxembourg Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Macedonia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Madagascar Not allowed. Automatic loss of citizenship of origin country.
Malawi Not allowed. Automatic loss of citizenship of origin country.
Malaysia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Maldives Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Mali Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Malta Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Mauritania Not allowed. Automatic loss of citizenship of origin country.
Mauritius Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Mexico Allowed No automatic loss of birthright citizenship of origin country, and renunciation of citizenship of origin country is not possible. Automatic loss of citizenship of origin country for persons who have acquired citizenship of origin country by naturalisation.
Micronesia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Moldova Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Monaco Not allowed. Automatic loss of citizenship of origin country.
Mongolia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Montenegro Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Morocco Allowed. No automatic loss of citizenship of origin country, and renunciation of citizenship of origin country is not possible.
Mozambique Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Myanmar Not allowed. Automatic loss of citizenship of origin country.
Namibia Allowed. No automatic loss of birthright citizenship of origin country, but renunciation of citizenship of origin country is possible. Automatic loss of citizenship of origin country for persons who have acquired citizenship of origin country by naturalisation.
Nauru Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Nepal Not allowed. Automatic loss of citizenship of origin country.
Netherlands Not allowed. Automatic loss of citizenship of origin country, and the origin country is Party to Chapter 1 of the Strasbourg Convention, as well to the Second Protocol.4
Nicaragua Allowed No automatic loss of birthright citizenship of origin country, and renunciation of citizenship of origin country is not possible. Automatic loss of citizenship of origin country for persons who have acquired citizenship of origin country by naturalisation.
Niger Allowed. No automatic loss of citizenship of origin country, and renunciation of citizenship of origin country is not possible.
Nigeria Allowed. No automatic loss of birthright citizenship of origin country, but renunciation of citizenship of origin country is possible. Automatic loss of citizenship of origin country for persons who have acquired citizenship of origin country by naturalisation.
Norway Norway allows dual citizenship effective from Jan 2019
Oman Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Pakistan Not allowed. Automatic loss of citizenship of origin country.
Palau Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Panama Allowed No automatic loss of birthright citizenship of origin country, and renunciation of citizenship of origin country is not possible. Automatic loss of citizenship of origin country for persons who have acquired citizenship of origin country by naturalisation.
Paraguay Allowed. No automatic loss of birthright citizenship of origin country, but renunciation of citizenship of origin country is possible. Automatic loss of citizenship of origin country for persons who have acquired citizenship of origin country by naturalisation.
Peru Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Philippines Allowed. No automatic loss of birthright citizenship of origin country, but renunciation of citizenship of origin country is possible. Automatic loss of citizenship of origin country for persons who have acquired citizenship of origin country by naturalisation.
Poland Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Portugal Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Qatar Allowed. No automatic loss of citizenship of origin country, and renunciation of citizenship of origin country is not possible.
Romania Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Russia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Rwanda Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Samoa Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Senegal Not allowed. Automatic loss of citizenship of origin country.
Serbia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Seychelles Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Singapore Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Slovakia Not allowed. Automatic loss of citizenship of origin country.
Slovenia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Somalia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Spain Not allowed. Automatic loss of citizenship of origin country.
Sudan Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Suriname Not allowed. Automatic loss of citizenship of origin country.
Swaziland Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Sweden Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Switzerland Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Syria Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Taiwan Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Tajikistan Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Tanzania Not allowed. Automatic loss of citizenship of origin country.
Thailand Not allowed. Automatic loss of citizenship of origin country.
Timor-Leste Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Togo Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Tonga Allowed. No automatic loss of citizenship of origin country, and renunciation of citizenship of origin country is not possible.
Tunisia Allowed. No automatic loss of citizenship of origin country, and renunciation of citizenship of origin country is not possible.
Turkey Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Turkmenistan Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Tuvalu Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Uganda Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Ukraine Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Uruguay Allowed No automatic loss of birthright citizenship of origin country, and renunciation of citizenship of origin country is not possible. Automatic loss of citizenship of origin country for persons who have acquired citizenship of origin country by naturalisation.
Uzbekistan Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Vanuatu Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Venezuela Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Vietnam Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Yemen Allowed. No automatic loss of citizenship of origin country, and renunciation of citizenship of origin country is not possible.
Zambia Allowed. No automatic loss of citizenship of origin country, but renunciation of citizenship of origin country is possible.
Zimbabwe Allowed. No automatic loss of birthright citizenship of origin country, but renunciation of citizenship of origin country is possible. Automatic loss of citizenship of origin country for persons who have acquired citizenship of origin country by naturalisation.

 

Source: MACMIDE dual citizenship database