Naoto Watanabe (渡辺 直人, Watanabe Naoto, born October 15, 1980 in Ibaraki, Japan) is a Japanese former professional baseball player who is currently a coach for the Tohoku Rakuten Golden Eagles of the Nippon Professional Baseball(NPB). He previously played for the Yokohama BayStars/Yokohama DeNA BayStars and Saitama Seibu Lions of the NPB.