John Grattan O'Connell (October 27, 1902 – March 14, 1942) was an American professional football player who played two seasons in the National Football League (NFL) from 1926 to 1927. He played for the Hartford Blues during the 1926 season and the Providence Steam Roller during the 1927 season. O'Connell was a cartoonist and contributed to The Heights while at Boston College. At the time of his death, O'Connell was working as a sportswriter for the Hartford Courant. In 1971, he was inducted into the Boston College Varsity Club Athletic Hall of Fame.