List of Baltimore Orioles pitchers with the most home runs allowed
| Rank | Player Name | HRs |
| 1 | Jim Palmer | 303 |
| 2 | Scott McGregor | 235 |
| 3 | Dave McNally | 222 |
| 4 | Mike Flanagan | 212 |
| 5 | Mike Mussina | 210 |
| 6 | Dennis Martinez | 187 |
| 7 | Sidney Ponson | 180 |
| 8 | Mike Cuellar | 174 |
| 9 | George Blaeholder | 142 |
| 9 | Milt Pappas | 142 |
| 11 | Scott Erickson | 128 |
| 11 | Rodrigo Lopez | 128 |
| 13 | Mike Boddicker | 126 |
| 14 | Jason Johnson | 106 |
| 15 | Hal Brown | 105 |
| 16 | Ben McDonald | 100 |
| 17 | Ross Grimsley | 94 |
| 18 | Elam Vangilder | 87 |
| 18 | Robin Roberts | 87 |
| 20 | Steve Barber | 86 |
| 21 | Ken Dixon | 85 |
| 22 | Jeff Ballard | 84 |
| 23 | Lefty Stewart | 83 |
| 23 | Bob Muncrief | 83 |
| 25 | Urban Shocker | 82 |
