Koji Yamamoto
- Title: Koji Yamamoto
- Popularity: 1.107
- Known For: Acting
- Birthday: 1979-06-22
- Place of Birth: Niigata Prefecture, Japan
- Homepage: https://www.ohtapro.co.jp/talent/timemachinesangou.html
- Also Known As: やまもと こうじ, 山本浩司, タイムマシーン3号山本浩司, タイムマシーン3号, Time Machine Sangou, たいむましーんさんごう
