The 2021 Bolton Metropolitan Borough Council election to elect members of Bolton Metropolitan Borough Council took place on 6 May 2021, on the same day as other local elections.
21 seats were contested, including a by election in Astley Bridge Ward, following the death of Cllr Paul Wild. The Conservative Party won 10 seats, the Labour Party won 7 seats, Farnworth and Kearsley First won 2 seats, Horwich and Blackrod First won 1 seat, and the Liberal Democrats won 1 seat.
After the election, the total composition of the council was as follows:
Prior to the election the composition of the council was:
After the election the composition of the council was:
<span style="color:#FDBB30;">LD - Liberal Democrats</span><br /> <span style="color:purple;">U - UKIP</span><br /> <span style="color:#2F52A3;">IND - Independent (politician)</span>
Winning candidates are highlighted in bold.
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