Guernsey usually refers to either:
- Guernsey, the island or, more rarely, the whole jurisdiction of the ten parishes including smaller offshore islands such as Lihou, Jethou and Herm.
- Bailiwick of Guernsey, a Crown dependency composed of the jurisdictions of Guernsey, Alderney and Sark, as well as a number of smaller islands
Guernsey may also refer to: