Robert Nelson MacCallum (November 5, 1888 – August 24, 1956) was a college football player and reverend.
MacCallum attended Mt. Vernon High School.
He was an All-Southern guard for the Sewanee Tigers of , captain of the 1913 team. He graduated with a theology degree.
MacCallum was a seminarian who served parishes in Tennessee, Georgia, Texas, New Mexico, and South Carolina. He was admitted as a candidate for Holy Orders on June 23, 1914 in Savannah, Georgia.