Yoshiaki Koizumi (小泉 歓晃, Koizumi Yoshiaki, born April 29, 1968) is a Japanese video game designer, director, and producer, and business executive. He is a senior executive officer at Nintendo and deputy general manager at Nintendo EPD, where he is known for his work within their Mario and The Legend of Zelda series. Since October 2022, Koizumi is part of the board of directors of Nintendo's subsidiary Nintendo Pictures as one of its directors.