Ryoko Takemura (born 2 June 1976) is a Japanese former professional tennis player.

She competed predominantly on the ITF Women's Circuit, winning three singles and nine doubles titles.

In 1999 she won a Universiade bronze medal for Japan in the women's doubles with Seiko Okamoto.

At the 2004 Australian Open, Takemura and Seiko Okamoto were given a wildcard into the doubles main draw, where they were beaten in the opening round by second seeds Martina Navratilova and Lisa Raymond.

[1] In 2005, she teamed up with Tomoko Yonemura to win three $25k tournaments, and reached her best doubles ranking of 165 in the world.