Rina Saigo (西郷里奈, Saigō Rina, born 17 October 2000) is a Japanese tennis player.

She has a career-high singles ranking of world No.

[2] Saigo made her WTA Tour debut after making it through qualifying at the 2022 Pan Pacific Open, but lost in the main-draw first round to Petra Martić.

[3] She also qualified for the 2023 Pan Pacific Open, again losing in the first round, this time to Cristina Bucșa.

This biographical article relating to Japanese tennis is a stub.