The 2020 Arkansas Senate elections took place as part of the biennial 2020 United States elections. Arkansas voters elected state senators to the Arkansas Senate in 17 of the state's 35 senate districts. The primary elections on March 3, 2020, determined which candidates would appear on the November 3, 2020, general election ballot. The outcome of this election was identified by the National Conference of State Legislatures as one of many that could affect partisan balance during post-Census redistricting.