The 2020 Hawaii Senate elections took place as part of the 2020 United States elections. Hawaii voters elected state senators in 13 of the state's 25 senate districts. The primary elections on August 8, 2020, determined which candidates would appear on the November 3, 2020 general election ballot.
Following the previous election in 2018, Democrats had control of the Hawaii Senate with 24 seats to Republicans' one seat.
Two incumbent senators (both Democrats) did not seek reelection in 2020.
Source for primary results: Source for general election results:
Democratic primary<br />
General election<br />
Incumbent Democrat and Senate President Ron Kouchi was automatically reelected without opposition, with no votes recorded.
Democratic primary<br />
General election<br /> Incumbent Democrat Les Ihara Jr. was automatically reelected without opposition, with no votes recorded.
Incumbent Democrat Brian Taniguchi was automatically reelected without opposition, with no votes recorded.
General election<br /> Incumbent Democrat Karl Rhoads was automatically reelected without opposition, with no votes recorded.
Incumbent Democrat Donna Mercado Kim was automatically reelected without opposition, with no votes recorded.
Incumbent Democrat Glenn Wakai was automatically reelected without opposition, with no votes recorded.
Democratic primary<br />
General election<br />
Democratic primary<br />
General election<br />