Countries may change their nationality laws and these lists are subjected to change:
List of countries that allow Dual Citizenship to their citizens:
Australia, Barbados, Belgium, Bangladesh, Canada, Cyprus, United States, United Kingdom, Switzerland, South Korea, South Africa*, Egypt*, Greece, France, Finland, Germany, Iraq, Italy, Israel, Ireland, Hungary, Iceland, Sweden, Slovenia, Syria, Serbia, Armenia, Lebanon, Malta, Spain ( allows only with certain Latin American countries), Tonga, Philippines, Sierra Leone, Sri Lanka, Pakistan (see below), Portugal, Turkey*.
*(permission subject to prior approval)
List of countries that do not allow Dual Citizenship to their citizens:
Andorra, Austria, Azerbaijan, Burma, Bahrain, Botswana, Japan, China, Czech Republic, Denmark, Fiji, India, Indonesia, Ecuador, Estonia, Iran, Poland, Papua New Guinea, Brunei, Japan, Peru, Kuwait, Kenya, Kazakhstan, Chile, Kiribati, Poland, Korea, Kuwait, Denmark, Latvia, Singapore, Slovakia, Ecuador, Lithuania, Solomon Islands, Fiji, Malaysia, Mauritius, Netherlands, United Arab Emirates, Romania, Thailand, Mexico, Nepal, Venezuela, Norway, Zimbabwe, Mauritius, Myanmar, Nepal
Pakistan allows dual citizenship for these countries:
United Kingdom, Italy, France, Belgium, Iceland, Australia, New Zealand, Sweden, United States, Ireland, Netherlands, Switzerland, Canada, Egypt, Jordan, Syria, Spain, Argentina, Bolivia, Chile, Colombia, Costa Rica, the Dominican Republic, Ecuador, Guatemala, Honduras, Nicaragua, Paraguay, Peru and Uruguay, Andorra, Portugal, the Philippines and Equatorial Guinea.
List of countries that allow Dual Citizenship to their citizens:
Australia, Barbados, Belgium, Bangladesh, Canada, Cyprus, United States, United Kingdom, Switzerland, South Korea, South Africa*, Egypt*, Greece, France, Finland, Germany, Iraq, Italy, Israel, Ireland, Hungary, Iceland, Sweden, Slovenia, Syria, Serbia, Armenia, Lebanon, Malta, Spain ( allows only with certain Latin American countries), Tonga, Philippines, Sierra Leone, Sri Lanka, Pakistan (see below), Portugal, Turkey*.
*(permission subject to prior approval)
List of countries that do not allow Dual Citizenship to their citizens:
Andorra, Austria, Azerbaijan, Burma, Bahrain, Botswana, Japan, China, Czech Republic, Denmark, Fiji, India, Indonesia, Ecuador, Estonia, Iran, Poland, Papua New Guinea, Brunei, Japan, Peru, Kuwait, Kenya, Kazakhstan, Chile, Kiribati, Poland, Korea, Kuwait, Denmark, Latvia, Singapore, Slovakia, Ecuador, Lithuania, Solomon Islands, Fiji, Malaysia, Mauritius, Netherlands, United Arab Emirates, Romania, Thailand, Mexico, Nepal, Venezuela, Norway, Zimbabwe, Mauritius, Myanmar, Nepal
Pakistan allows dual citizenship for these countries:
United Kingdom, Italy, France, Belgium, Iceland, Australia, New Zealand, Sweden, United States, Ireland, Netherlands, Switzerland, Canada, Egypt, Jordan, Syria, Spain, Argentina, Bolivia, Chile, Colombia, Costa Rica, the Dominican Republic, Ecuador, Guatemala, Honduras, Nicaragua, Paraguay, Peru and Uruguay, Andorra, Portugal, the Philippines and Equatorial Guinea.