Reiko Miyagi (27 May 1922 – 1 June 2008) was a Japanese tennis player of the 1950s and 1960s.

She was the elder sister of grand slam doubles champion Atsushi Miyagi.

[1] Miyagi was born in Ōta City, near the grounds of the Denen Coliseum where she trained.

[2] A four-time Asian Games gold medalist, Miyagi won a record 30 titles at the All Japan Championships across singles and doubles.

[3] In 1964 she was a member of Japan's first ever Federation Cup team and made the singles second round of that year's U.S. National Championships, losing to Billie Jean Moffitt.