The Crown Dependencies are three offshore island territories in the British Islands that are self-governing possessions of the British Crown: the Bailiwick of Guernsey and the Bailiwick of Jersey, both located in the English Channel and together known as the Channel Islands, and the Isle of Man in the Irish Sea between Great Britain and Ireland.

A dependent territory, dependent area, or dependency is a territory that does not possess full political independence or sovereignty as a sovereign state and remains politically outside the controlling state's integral area. As such, a dependent territory includes a range of non-integrated not fully to non-independent territory types, from associated states to non-self-governing territories.