The 2010 St Helens Metropolitan Borough Council election took place on 6 May 2010 to elect members of St Helens Metropolitan Borough Council in Merseyside, England. One third of the council was up for election and the Labour Party gained overall control of the council from no overall control.^[1]

After the election, the composition of the council was:

• Labour 28
• Liberal Democrats 15
• Conservative 5^[2]

Before the election Labour were the largest party with 23 councillors, but the council was run by an alliance between the Liberal Democrats with 19 seats and the Conservatives with 6 seats.^[3] Seats were contested in all 16 of the wards at the 2010 election,^[3] with Labour needing a 2-seat swing to win a majority on the council.^[4]

Labour gained 5 seats to take control of the council,^[5] with 28 councillors. This gave them an 8-seat majority over the Liberal Democrats with 15 seats and the Conservatives with 5 seats.^[6] Labour took Bold, Haydock, Moss Bank and Town Centre from the Liberal Democrats, including defeating the Liberal Democrat cabinet member Richard Ferry in Moss Bank.^[6] Meanwhile, Labour also gained Windle from the Conservatives.^[6]

Following the election Labour's Marie Rimmer became leader of the council for a third time.^[7]