The Wisconsin State Assembly elections of 2020 were held on Tuesday, November 3, 2020. All 99 seats in the Wisconsin State Assembly were up for election. 13 incumbent Assembly members have filed papers declaring that they will not run for re-election, including two who announced early vacancies. Right before this election, 63 Assembly seats were held by Republicans, 34 seats were held by Democrats, and two seats were vacant.

Robin Joseph Vos is an American businessman and Republican politician and the 79th speaker of the Wisconsin State Assembly, serving in that role since 2013. He has been a member of the Assembly since 2005, representing most of the southern half of Racine County. Vos is also president of the National Conference of State Legislatures.