Matsui was born in Kitakyushu City, Fukuoka, on November 2, 1985.[2] His family consists of his mother, Toko Matsui [ja] a columnist who works mainly in Kyushu, his father, and an older brother.[3]
^"松居大悟:映画、演劇、TVドラマの境界を超えて|話題の人|三田評論ONLINE" [Daigo Matsui: Beyond the boundaries of film, theater, and TV drama | Hot topic | Mita Review ONLINE]. 三田評論 (in Japanese). Archived from the original on 2023-03-07. Retrieved 2024-08-11.