The 2026 Hawaii Senate election is scheduled to be held on Tuesday, November 3, 2026, to elect 13 of 25 representatives to serve four-year terms in the Hawaii Senate. Partisan primaries will take place on August 8, 2026. Democrats currently hold a veto-proof supermajority in the chamber.
State senators in Hawaii represent an average of 58,405 residents as of the 2020 United States census. If a primary or general election in a district sees only one candidate file, no election will be held. Four general elections in 2024 were canceled due to lack of competition.
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Incumbent Democrat Joy San Buenaventura was re-elected in 2022 with 69.74% of the vote. She is running for re-election.
Incumbent Democrat Troy Hashimoto was elected in a 2024 special election unopposed. He has not announced if he will run for re-election.
Incumbent Democrat Ron Kouchi was re-elected in 2022 with 71.41% of the vote. Although previously signaling he would retire, Kouchi instead announced he would run for re-election.
Incumbent Democrat Stanley Chang was re-elected in 2022 with 70.27% of the vote. He has not announced if he will run for re-election.
Incumbent Democrat Les Ihara Jr. was re-elected in 2022 with 66.98% of the vote. He has not announced if he will run for re-election.
Incumbent Democrat Carol Fukunaga was elected in 2022 with 75.31% of the vote. She has not announced if she will run for re-election.
Incumbent Democrat Karl Rhoads was re-elected in 2022 with 64.36% of the vote. He is retiring.
Incumbent Democrat Donna Mercado Kim was re-elected in 2022 with 73.57% of the vote. She is running for re-election.
Incumbent Democrat Glenn Wakai was re-elected in 2022 with 67.69% of the vote. He has not announced if he will run for re-election.
Incumbent Democrat Donovan Dela Cruz was re-elected in 2022 with 65.20% of the vote. He has not announced if he will run for re-election.
Incumbent Democrat Rachele Lamosao was appointed effective January 2026 after Henry Aquino, who was re-elected in 2024 unopposed, resigned in November 2025. A special election to fill the remaining two years of his term will be held concurrent with regularly scheduled primary elections on August 8.
Incumbent Republican Kurt Fevella was re-elected in 2022 unopposed. He is running for re-election.
Incumbent Democrat Mike Gabbard was re-elected in 2022 with 58.89% of the vote. He is running for re-election.
Incumbent Democrat Chris Lee was re-elected in 2022 with 70.30% of the vote. He has not announced if he will run for re-election.