The 2021 Scottish Parliament election took place on 11 May 2021, under the provisions of the Scotland Act 1998. All 129 Members of the Scottish Parliament were elected in the sixth election since the parliament was re-established in 1999. The election was held alongside the Senedd election, English local elections, London Assembly and mayoral election and the Hartlepool by-election.

Scottish Labour, officially the Scottish Labour Party, is the part of the UK Labour Party active in Scotland. Ideologically social democratic and unionist, it holds 22 of 129 seats in the Scottish Parliament and 2 of 59 Scottish seats in the House of Commons. It is represented by 262 of the 1,227 local councillors across Scotland. The Scottish Labour party has no separate Chief Whip at Westminster.