Ota Yamamoto

, is a Japanese professional footballer who plays as a midfielder for club RB Omiya Ardija, on loan from RB Leipzig.

Early life Yamamoto was born on 4 June 2004 in Hiroshima.

Career As a youth player, Yamamoto joined the youth academy of Japanese side Kashiwa Reysol and was promoted to the club's senior team in 2023, where he made sixteen league appearances and scored zero goals. Ahead of the 2025 season, he was sent on loan to Japanese side Renofa Yamaguchi FC, where he made thirty-three league appearances and scored ten goals.

Following his stint there, he was sent on loan to Japanese side RB Omiya Ardija in 2026, where he made nineteen league appearances and scored ten goals. Japanese news website Gekisaka wrote in 2026 that he "quickly adapted to Omiya's basic tactic of aggressive pressing" while playing for the club. During the summer of 2026, he signed for German Bundesliga side RB Leipzig, before returning to Japanese side RB Omiya Ardija on loan.

Style of play Yamamoto plays as a midfielder. Right-footed, he has received comparisons to Japan international Daichi Kamada.