Ryuso Tsujino

 is a former professional tennis player from Japan.
He is married to Japanese actress and singer Yōko Oginome.
Career.
Tsujino twice made the second round of the Tokyo Indoor tournament, in 1990 when he defeated Joey Rive and 1993 when he had a win over Patrik Kühnen.
In the 1994 Australian Open, his only Grand Slam appearance, Tsujino lost in the opening round to Brent Larkham. Also that year he was a mixed doubles silver medalist at the Asian Games in Hiroshima, partnering Nana Miyagi.
He played in five Davis Cup ties for Japan between 1992 and 1995. His two wins were both in doubles, with Thomas Shimada, against the Chinese and Filipino pairings.