Tomo Maesawa (Japanese: 前澤智, born 10 December 1987) is a retired Japanese mixed martial artist. A professional competitor since 2012, Maesawa is the former DEEP JEWELS Atomweight champion, having retired with the title after defending it twice. At the time of her retirement, she was ranked as the #10 atomweight in the world by Fight Matrix and #9 by Sherdog.