| Name | Unit | Camp |
| Oakley Jerry L PFC | 2D | 5 |
| Obenauer Ira J PFC | 2D | 1 |
| Oberle Edward F M/Sgt | 1CD | 5 |
| O’Brien James P Sgt | 2D | 5 |
| Obruff Fred Pvt | 2CMCo | 4 |
| Ochs Maynard J Sgt | 2D | 5 |
| O’Connor Joseph L Capt | 1CD | 2 |
| O’Dowd Paul T 1st Lt | 2D | 2 |
| O’KEEFE ARTHUR M Cpl | 24D | 3 |
| O’Keeffe John J Sgt | 1CD | 3 |
| Olaker Fraddia Cpl | 2D | 1 |
| Oldwage Daniel H S/Sgt | 307BG | 5 |
| Oliver Edgar PFC | 24D | 1 |
| Oliver Glenn J Cpl | 25D | 5 |
| Oliver William P PFC | 1CD | 1 |
| Oliveras Pastor Cpl | 2D | 5 |
| Olson William H SFC | 7D | 1 |
| Omerzo Louis PFC | 2D | 5 |
| O’Neal Robert LJ Cpl | 24D | 1 |
| Ono Thomas Y Cpl | 25D | 1 |
| Ordonio Philip Sgt | 24D | 3 |
| Ori John 1st Lt | 9ROKD | 2 |
| Oribio Buermventura E Cpl | 24D | 3 |
| Orr Johnnie E PFC | 25D | 5 |
| ORR LOVIE E Sgt | 2D | 5 |
| Orteza Dionisio Cpl | 2D | 5 |
| Ortiz Orlando 1st Lt | 24D | 2 |
| Osborn Loyd E PFC | IMD | 1 |
| Oshorns Chester M Capt | 24D | 2 |
| Osborne Ed Pvt | 24D | 1 |
| Osborne Henry H Lt | 2CAG | 2 |
| Osborne Perry J PFC | 3D | 1 |
| Osborne William D Sgt | 2D | 5 |
| Ouimet Walter L Cpl | 1CD | 1 |
| Ousley Gary L Cpl | 2D | 3 |
| Owens Boss M/Sgt | 25D | 5 |
| Owens John E Cpl | 1CD | 5 |
