St. Helens North is a constituency[n 1] created in 1983 represented in the House of Commons of the UK Parliament by the Labour Party's David Baines since 2024.

It includes the north of the town of St Helens, and Billinge, Seneley Green, Earlestown, Blackbrook, Haydock, Newton-le-Willows and Rainford.

The constituency was first won by the former Newton MP John Evans and from 1997 to 2015 by David Watts, a former council leader.

The Conservative Party have fielded the runner-up candidate in every election except 2005 (Liberal Democrats) and 2024 (Reform UK).

The seat includes the large town of St Helens, noted by visitors for its successful rugby league side and the nearby horseracing racecourse at Haydock Park.