John Barton O'Hara (January 13, 1944 – February 22, 1992) was an American football coach.

He served as the head football coach at Southwest Texas State University–now known as Texas State University–from 1983 to 1989, compiling a record of 36–41.

[1] O'Hara died in 1992 on a Caribbean cruise while he was a member of the University of Iowa coaching staff.

[2][3] # denotes interim head coach