Ryuki Takahashi (高橋 龍輝, Takahashi Ryūki, born 28 March 1993) is a Japanese actor. Takahashi was affiliated with the acting unit D-BOYS, produced by Watanabe Entertainment. He is well known for his role as Ryoma Echizen in 5th cast of "Tennis no Oujisama ~ Musicals". He retired from the entertainment business due to health reasons on June 30, 2016. In 2019, he returned to the entertainment industry by joining the band WIN=W1N.