The 2024 Tokyo gubernatorial election took place on 7 July 2024 to elect the Governor of Tokyo. Incumbent Yuriko Koike was re-elected for a third term, albeit at a reduced share of the votes compared to her 2016 election and 2020 re-election. Shinji Ishimaru, the former Mayor of Akitakata, exceeded expectations to place second behind Koike. Meanwhile, lawmaker Renhō, who was endorsed by the main left-wing opposition parties and was widely considered Koike's main opponent leading up to election day, significantly underperformed her polling and placed third.

Ishimaru's success has been attributed to his extensive use of social media platforms for campaigning, winning independents and the youth vote, while Renhō's poor performance has been linked to her collaboration with the Japanese Communist Party (JCP), resulting in alienation among independent and moderate voters.

The election took place simultaneously with by-elections to replace 9 vacant seats in the Tokyo Metropolitan Assembly.

Incumbent Governor Yuriko Koike ran for re-election to a third term, receiving the endorsement of the Democratic Party For the People and the regional party Tomin First no Kai, which Koike founded and currently serves as their special advisor. The Liberal Democratic Party and Komeito, who previously refused to support Koike in 2016 and 2020, endorsed her at their own initiative.

Koike's main opponent was expected to be lawmaker Renhō, who received the endorsement of the main left-wing opposition parties; the Constitutional Democratic Party, the Japanese Communist Party and the Social Democratic Party. Shinji Ishimaru, the former Mayor of Akitakata, and Toshio Tamogami, the former Chief of Staff of the Japan Air Self-Defense Force ran without the support of any major parties. Free Education For All and Sanseitō instructed its members to vote freely, while Nippon Ishin no Kai and Reiwa Shinsengumi did not field or endorse a candidate.

Minor candidates included ultranationalist and anti-Korean political activist Makoto Sakurai, who ran under the Japan First Party, and Atsuhiko Kurokawa, who was arrested in June 2024 for alleged election interference and sabotage during a House of Representatives by-election in April 2024, who ran under the Tsubasa Party.

56 candidates filed to run in the election, with nearly half of them belonging to Takashi Tachibana's NHK Party, the highest number of registered candidates to date. Media outlets have described the high number of candidates as being a result of the election becoming known as a forum for self-promotion and publicity stunts.

The main issues in the election included declining birth rates, environmental laws, redevelopment of the Meiji Jingu Gaien area, and the use of projection mapping on the Tokyo Metropolitan Government Building.