Elections to Rushmoor Borough Council took place on 6 May 2021 as part of the 2021 United Kingdom local elections. This took place at the same time as the elections for Hampshire County Council and the Hampshire Police and Crime Commissioner.
In the previous election, the Conservatives won nine of the 13 seats up for election. In the 2021 election they were due to defend eight of thirteen seats up for election, and were mathematically incapable of losing their majority. The statement of persons nominated was published on Friday 9 April.