Ralph Ronald Musselman (born November 11, 1954) is a former Major League Baseball pitcher for the Seattle Mariners () and Toronto Blue Jays (-). Prior to turning professional, he played for the Clemson Tigers. Musselman was mostly a relief pitcher during his career, but did pick up four career victories. His lone MLB save came on September 24, 1984. Musselman pitched of an inning, closing out a wild 9-8 Blue Jays victory over the Red Sox.
Following his baseball career, Musselman started a successful landscaping firm, Musselman Landscaping, which he dissolved in recent years to pursue a career as a realtor in the Wilmington, North Carolina area. Musselman is the biological father of professional golfer Lucas Glover.