1991 Mr USA - AAU
| Overall Winner Mike Scarcella | |
Tall | |
| 1 | Bruce Thompson (1) |
| 2 | Michael Lange |
| 3 | Nick Casalanguida |
| 4 | Steve Wisniewski |
Medium-Tall | |
| 1 | Billy Nothaft |
| 2 | Michael Kovar |
| 3 | Mike Billotti |
| DQ | Chuck Waldron |
Medium | |
| 1 | Mike Scarcella |
| 2 | David Pulcinella |
| 3 | Butch Nieves |
| 4 | Vinny Greco |
| 5 | Ron Altamuro |
| 6 | James Maiden |
Short | |
| 1 | Kelly Hitchcock |
| 2 | Mike Daniels |
| 3 | Robert Duplantis |
| 4 | Kevin Berg |
| 5 | Trey Boyer |