| Joe Trainer | |
| Birth Date: | 6 March 1968 |
| Player Years1: | 1986–1989 |
| Player Team1: | Dickinson |
| Coach Years1: | 1990–1991 |
| Coach Team1: | Temple (GA) |
| Coach Years2: | 1992 |
| Coach Team2: | Frostburg State (ST) |
| Coach Years3: | 1993–1994 |
| Coach Team3: | Colgate (LB/ST) |
| Coach Years4: | 1995–1996 |
| Coach Team4: | New Haven (LB/DC) |
| Coach Years5: | 1997–2004 |
| Coach Team5: | Villanova (LB/DC) |
| Coach Years6: | 2005–2007 |
| Coach Team6: | Millersville |
| Coach Years7: | 2008 |
| Coach Team7: | Rhode Island (DC) |
| Coach Years8: | 2009–2013 |
| Coach Team8: | Rhode Island |
| Coach Years9: | 2014–2018 |
| Coach Team9: | Villanova (ST/DL) |
| Admin Years1: | 2019–2022 |
| Admin Team1: | Pope John Paul II High School |
| Overall Record: | 25–64 |
Joe Trainer (born March 6, 1968) is an American football coach, former player, and former athletic director. He was the defensive coordinator for Villanova from 2014 to 2018. He served as head football coach at Millersville University of Pennsylvania from 2005 to 2007, and the University of Rhode Island from 2009 to 2013, compiling a career college football record of 25 wins and 64 losses.
Trainer is a native of Roslyn, Pennsylvania.
After his stint with the Rams he joined Pope John Paul II High School in Royersford, Pennsylvania as their athletic director before stepping down in 2022.[1] After being the athletic director for four years he stepped down to become a school counselor at La Salle College High School in Wyndmoor, Pennsylvania.[2]