Gregory Gustina (born August 12, 1973, on Curaçao, Netherlands Antilles) is a Dutch professional baseball pitcher with Sparta-Feyenoord of the Honkbal Hoofdklasse. In 2010, Gustina led the league in innings pitched. In 2006, he appeared with the Netherlands national baseball team at the 2006 World Baseball Classic. He represented the Netherlands Antilles at the 1995 Pan American Games.