Yoshiyuki Kamei (亀井 善行) is a Japanese professional baseball player for the Yomiuri Giants in Japan's Nippon Professional Baseball. He was selected Japan national baseball team at the 2009 World Baseball Classic. During a brief stint in the 2010–11 Australian Baseball League season he played for the Melbourne Aces and although he did not qualify for any statistical leaders, he has the highest single season slugging (.859) and OPS (1.359) for any player with more than 50 at-bats (64). On November 16, 2018, he was selected Yomiuri Giants roster at the 2018 MLB Japan All-Star Series exhibition game against MLB All-Stars.