Ryota Kohama (Japanese: 小浜良太, Hepburn: Kohama Ryōta, born 4 September 1989[1]), better known by his stage name Ryota, is a Japanese musician who is best known for being the bassist of the rock band One Ok Rock.

He was in the hip-hop dance group Heads along with Toru Yamashita (guitarist of One Ok Rock) before they disbanded in 2002.

They formed a hip-hop dance group HEADS when they were fifth and sixth graders with Takuya Uehara and Kohei Nakamura.

The dance group made a performance every weekend on the busy streets in Osaka's Kyoubashi and Tokyo's Akihabara, shopping, and amusement districts.

[citation needed] In 2005, when Toru tried to explore acting and took a main role in the TV series Shibuya Fifteen, Kohama also played a minor character in the drama.

It was rumoured that the couple had gotten married because during an encore at a concert, Taka said "Congrats on marriage, Ryota!"