Terry Fennell Blocker (born August 18, 1959) is an American former Major League Baseball (MLB) outfielder who played with the New York Mets and Atlanta Braves.

Blocker was the Mets' first round selection (#4 overall) in the 1981 Major League Baseball Draft out of Tennessee State University.

In 1982, he played for the Mets' minor league affiliate in Jackson, where he shared the outfield with two players who would go on to greater fame - Darryl Strawberry and Billy Beane.

He sustained a bruised tendon above his left knee in a collision with Danny Heep in right-centerfield that resulted in Terry Pendleton's inside-the-park grand slam in the fifth inning of an 8–2 loss to the St. Louis Cardinals in the second game of a doubleheader at Shea Stadium on June 9, 1985.

West Palm Beach police confirmed Blocker helped target suspect Neal Douglas Evans.