Cardiff North (Welsh: Gogledd Caerdydd) is a constituency represented in the House of Commons of the UK Parliament since 2017 by Anna McMorrin of the Labour Party. The seat has been relative to others a marginal seat since 2001 as well as a swing seat as its winner's majority has not exceeded 8% of the vote since the 14.3% majority won in that year. The seat has changed political allegiance twice since that year.