Miki Mizokuchi (born 13 May 1965) is a Japanese former professional tennis player.

Born in Tokyo, Mizokuchi began competing professionally in 1985 and reached her career best singles ranking of 221 in the world in 1988.

Her best WTA Tour performance was a second round appearance at the 1988 Taipei Women's Championships.

Mizokuchi featured in the women's doubles main draw of the 1990 Australian Open, partnering Kazuko Ito.

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