Naofumi Yamamoto (August 1, 1977) is a Japanese professional wrestler and boxer. He previously worked for WWE, where he wrestled under the ring name Yoshi Tatsu on its SmackDown brand. He was trained in the New Japan Pro Wrestling (NJPW) Dojo and worked for NJPW from 2002 until 2008 when he signed with WWE. After his release in 2014, Yamamoto re-signed with New Japan Pro Wrestling and is now in his second run in the promotion.