The term "British subject" has several different meanings depending on the period. Before 1949, it referred to almost all people in the British Empire (including the United Kingdom, Dominions, and colonies, but excluding protectorates and protected states). Between 1949 and 1983, the term was synonymous with Commonwealth citizen. Currently, it refers to people possessing a class of British nationality largely granted under limited circumstances to those connected with Ireland or British India born before 1949. Individuals with this nationality are British nationals and Commonwealth citizens, but not British citizens.
The status under the current definition does not automatically grant the holder right of abode in the United Kingdom but almost all British subjects do have this entitlement. As of 2025, about 20,400 British subjects hold valid British passports with this status and enjoy consular protection when travelling abroad; about 800 do not have right of abode in the UK.