| Paul Castonia | |
| Current Title: | Co-head coach |
| Current Team: | Plymouth State |
| Current Conference: | MASCAC |
| Current Record: | 89–103 |
| Alma Mater: | Trinity College (1986) University of Rhode Island (1989) |
| Coach Years1: | 1986–1988 |
| Coach Team1: | Rhode Island (GA) |
| Coach Years2: | 1989–1991 |
| Coach Team2: | Maryland (GA) |
| Coach Years3: | 1992 |
| Coach Team3: | Hartwick (OC/ST) |
| Coach Years4: | 1993–1996 |
| Coach Team4: | Ferrum (OC/ST) |
| Coach Years5: | 1997 |
| Coach Team5: | Lynn Classical HS (MA) (assistant) |
| Coach Years6: | 1998–2000 |
| Coach Team6: | UMass Boston |
| Coach Years7: | 2001–2002 |
| Coach Team7: | Bryant (DC) |
| Coach Years8: | 2003–2019 |
| Coach Team8: | Plymouth State |
| Coach Years9: | 2020–present |
| Coach Team9: | Plymouth State (co-HC) |
| Overall Record: | 91–131 |
| Bowl Record: | 2–1 |
| Tournament Record: | 0–2 (NCAA D-III playoffs) |
| Championships: | 1 NEFC (2008) 1 MASCAC (2017) |
Paul Castonia (born 1965) is an American college football coach. He is the co-head football coach for Plymouth State University, a position he has held since 2020. He also was the head football coach for University of Massachusetts Boston from 1998 to 2000. He previously coached for Rhode Island, Maryland, Hartwick, Ferrum, and Bryant.[1] [2] [3]