Types of British citizens
Over the years there have been a variety of far-reaching changes to UK immigration law. As the British Empire grew and shrunk, territories once under its dominion often came to differing agreements with regards to citizenship and nationality.
The consequences of these agreements, in combination with UK immigration law and policy, determine the exact relation to the UK for people who were born in these territories and the children of people who were born in these territories. Depending on where and when you, or your parents or grandparents, were born, you could be eligible to apply to become a British citizen.
Below are sections on the various types of citizenship that have, and still can, transfer claims to British nationality to you or your descendants.