- Antigua and Barbuda
- Australia
- The Bahamas
- Bangladesh
- Barbados
- Belize
- Botswana
- Brunei Darussalam
- Cameroon
- Canada
- Cyprus
- Dominica
- Fiji Islands
- Gambia
- Ghana
- Grenada
- Guyana
- India
- Jamaica
- Kenya
- Kiribati
- Lesotho
- Malawi
- Malaysia
- Malta
- Mauritius
- Mozambique
- Namibia
- Nauru
- New Zealand
- Nigeria
- Pakistan
- Papua New Guinea
- Rwanda
- St. Kitts and Nevis
- St Lucia
- St Vincent & The Grenadines
- Samoa
- Seychelles
- Sierra Leone
- Singapore
- Solomon Islands
- South Africa
- Sri Lanka
- Swaziland
- Tanzania
- Tonga
- Trinidad and Tobago
- Tuvalu
- Uganda
- United Kingdom
- Vanuatu
- Zambia
- Zimbabwe
Nationalities eligible to vote in the UK
British Commonwealth Countries
British Overseas Territories
- Anguilla
- Bermuda
- British Antarctic Territory
- British Indian Ocean Territory
- British Virgin Islands
- Cayman Islands
- Falkland Islands
- Gibraltar
- Monserrat
- Pitcairn Island
- Pitcairn Island
- St Helena
- St Helena dependencies
- South Georgia & South Islands
- Turks & Caicos Islands
British Crown Dependencies
- Channel Islands
- Isle of Man
Hong Kong
Only former residents of Hong Kong who hold a British Dependent Territories, British Nationals (Overseas) or British Overseas passport qualify for registration.
European Union Member States
- Austria
- Belgium
- Bulgaria
- Croatia
- Cyprus
- Czech Republic
- Denmark
- Estonia
- Finland
- France
- Germany
- Greece
- Hungary
- Republic of Ireland
- Italy
- Latvia
- Lithuania
- Luxembourg
- Malta
- The Netherlands
- Poland
- Portugal
- Romania
- Slovakia
- Slovenia
- Spain
- Sweden
- United Kingdom