The 2021 Suffolk County Council election took place on 6 May 2021 as part of the 2021 local elections in the United Kingdom. All 75 councillors were elected from 63 electoral divisions, which return either one or two county councillors each, by first-past-the-post voting, for a four-year term of office. Voters who live in divisions which elect two councillors (12 divisions) are entitled to cast a maximum of two votes, while those living in divisions only electing one councillor (51 divisions) are only entitled to cast one vote.