Brent Billingsley (born April 19, 1975) is a former Major League Baseball relief pitcher. Billingsley played for the Florida Marlins in the 1999 season, appearing in eight games for a total of 7.2 innings pitched. He bats and throws left-handed. Billingsley was drafted by the Marlins in the 5th round of the 1996 MLB amateur draft out of Cal State Fullerton, having transferred there from East Carolina University.