Rafael Chaves (born January 11, 1968, in Isabela, Puerto Rico) is the current pitching coach for the Rochester Red Wings, the Washington Nationals’ Triple-A team. He was pitching coach of the Seattle Mariners in 2006 and 2007 and the pitching coach for the Scranton/Wilkes-Barre Yankees, the New York Yankees' Triple A team. He was the Los Angeles Dodgers minor pitching coordinator from 2008 to 2013 and a special assistant for player personnel in 2014. On October 7, 2014, he was hired by the Philadelphia Phillies to become a pitching coordinator for them.

As a professional player, Chaves was signed as an undrafted free agent by the San Diego Padres in 1986. He pitched in the minor leagues until 1997, having spent time in the Baltimore Orioles, Florida Marlins, and Pittsburgh Pirates organizations.

Chaves resides in Orlando,Florida with his wife, Ivelisse Abreu, daughter Nicole Chaves and grandchild Diego Puig. On October 6, 2014, the Philadelphia Phillies announced Chaves was hired as their minor league pitching coordinator.