Kaguya-sama: Love Is War (Japanese: かぐや様は告らせたい ～天才たちの恋愛頭脳戦～, Hepburn: Kaguya-sama wa Kokurasetai: Tensai-tachi no Ren'ai Zunōsen, transl. "Lady Kaguya Wants to Make Them Confess: The Geniuses' War of Hearts and Minds") is a Japanese romantic comedy manga series by Aka Akasaka. It began serialization in Shueisha's seinen manga magazine Miracle Jump in May 2015 and was transferred to Weekly Young Jump in March 2016. In North America, the manga is licensed in English by Viz Media.

A 12-episode anime television series adaptation by A-1 Pictures aired in Japan from January to March 2019. A second season aired from April to June 2020. An OVA episode was released in 2021, and a third season premiered in April 2022. It was also adapted into a live-action film directed by Hayato Kawai, which was released in Japan in September 2019. The anime series is licensed in North America by Aniplex of America.

As of April 2021, the manga had over 15 million copies in circulation. In 2020, Kaguya-sama: Love Is War won the 65th Shogakukan Manga Award in the general category.