Democrats maintained their majority in the general election for the Minnesota Senate on November 3, 2026. All 67 seats were up for election.

Heading into the election, Democrats held a 34–33 majority. Democrats needed to win 11 seats in addition to the 34 they already had in order to win a veto-proof majority. Republicans needed to win one seat in addition to the 33 they already had to win control of the Senate.

The 2022 Senate elections replaced the chamber's 34-seat Republican majority with a 34-seat Democratic majority, ending a period of Republican control that began after the 2016 elections. In 2022, Democrats won all five statewide partisan elections in Minnesota. In 2024, Democrats won the statewide elections for president and U.S. Senate as well as four of eight U.S. House elections. Republicans won the other four U.S. House elections. As of the 2026 election, the most recent Minnesota Republican to win a statewide election was Tim Pawlenty (R), who was elected governor in 2006.

Twenty-six of 34 Democrats and 23 of 33 Republicans ran for re-election. Democrats ran in all 67 Senate districts, and Republicans ran in 63 Senate districts. Six incumbents – three Democrats and three Republicans – ran for re-election in districts where their party's 2024 presidential nominee placed second.

Ballotpedia identified 17 of the 67 districts as battlegrounds based on past election results. The 17 battleground districts included four districts without an incumbent running and five with competitive fundraising among the candidates. Eleven battleground districts had a Republican incumbent, and six had a Democratic incumbent. Of the 11 battleground districts with a Republican incumbent, Democratic candidates won six, Republican candidates won four, and one was too close to call as of November 9, 2026. Of the six battleground districts with a Democratic incumbent, Democratic candidates won five and one was too close to call as of November 9, 2026.

The Minnesota Senate elections influenced the state's trifecta status. Heading into the election, neither party had a trifecta in Minnesota. Democrats had a majority in the Senate and Gov. Tim Walz (D) was a Democrat. Control of the Minnesota House of Representatives was split. Minnesota held elections for governor and all 134 seats in the House in addition to the elections for Senate. Because Democrats won the gubernatorial election and maintained their majority in the Senate while winning a majority in the House, they gained a trifecta in Minnesota.

The Minnesota Senate was one of 88 state legislative chambers with elections in 2026. There are 99 chambers throughout the country.