My Brother's Husband (Japanese: 弟の夫, Hepburn: Otōto no Otto) is a manga series by Gengoroh Tagame. Serialized in Monthly Action from 2014 to 2017, and adapted into a live-action television drama by NHK in 2018, the series follows the relationship between single father Yaichi, his daughter Kana, and Mike Flanagan, the Canadian husband of Yaichi's estranged and recently deceased twin brother.

The series, which focuses on themes of homophobia, cultural difference, and family, has been noted as a significant departure from Tagame's previous works, which focus on erotic and sadomasochistic subject material. My Brother's Husband has received overwhelming acclaim from critics, and has won an Eisner Award for Best U.S. Edition of International Material—Asia, a Japan Media Arts Award, and a Japan Cartoonists Association Award.