Robert Alonzo DeMoss was an American football player, coach, and college athletics administrator. He served as the head football coach at Purdue University from 1970 to 1972, compiling a career college football record of 13–18.

The Purdue Boilermakers football team represents Purdue University in the NCAA Football Bowl Subdivision (FBS) of college football. Purdue plays its home games at Ross–Ade Stadium on the campus of Purdue University in West Lafayette, Indiana. The head coach of Purdue is Ryan Walters, the 37th head coach in Purdue history. The Boilermakers compete in the Big Ten Conference as a member of the West Division. Purdue had most recently been a part of the Leaders Division of the Big Ten, but moved to the West Division in 2014 due to conference expansion.