Hideto Tanihara (born 16 November 1978) is a Japanese professional golfer.Tanihara was born in Onomichi, Hiroshima, Japan. He has won eight tournaments on the Japan Golf Tour and featured in the top 100 of the Official World Golf Rankings. He represented Japan at the 2007 Omega Mission Hills World Cup with Tetsuji Hiratsuka.On 14 July 2008, it was announced that he and actress Ayaka Nagate had married.