Miharu Imanishi (今西 美晴, Imanishi Miharu, born 20 May 1992) is a former professional tennis player from Japan. On 28 May 2018, she reached her highest WTA singles ranking of 187. On 9 September 2019, she peaked at No. 251 in the doubles rankings. Imanishi made her WTA Tour main-draw debut at the 2014 Japan Women's Open, in the singles event.