Caernarfon (UK Parliament constituency)

Caernarfon
Former County constituency for the House of Commons
Boundary of Caernarfon in Wales for the 2005 general election
Preserved county	Gwynedd
Major settlements	Caernarfon
1950–2010
Seats	One
Replaced by	Arfon and Dwyfor Meirionnydd
1536–1950
Seats	One
Type of constituency	District of Boroughs constituency

Caernarfon was a parliamentary constituency centred on the town of Caernarfon in Wales. It elected one Member of Parliament (MP).

The constituency was created in 1536 as a District of Boroughs, represented in the House of Commons of England until 1707, in the House of Commons of Great Britain from 1707 to 1800, and in the House of Commons of the United Kingdom from 1801 to 1950. The District of Boroughs was abolished in 1950, and replaced with a county constituency of the same name, which was itself abolished in 2010.