Iván Calderón Pérez (March 19, 1962 – December 27, 2003), nicknamed "Ivan the Terrible", was a Puerto Rican Major League Baseball player from 1984 to 1993.
He was named an All-Star in 1991.
On December 27, 2003, Calderón was shot multiple times in the back at point-blank range while at a bar in Loiza, Puerto Rico.