Misaki Doi (土居美咲, Doi Misaki, born April 29, 1991 in Ōamishirasato, Chiba) is a Japanese professional tennis player. She is left-handed and uses a two-handed backhand. Her highest WTA singles ranking is 75, which she reached on 7 October 2013. Her career high in doubles is 78, which she reached on 6 October 2014.