| | Name | Rank | ASN | Unit | Campaign | | Ogilvie, Hiram W. | T/5 | | DHQ | |
| Ogilvie, James W. | | | 531 AAA/Btry A | |
| Ogle, Cecil O. | Pvt | 37507262 | 105 Eng | |
| Ogle, Edward R | Pfc | 37619350 | 119/E | |
| Ogle, James E. | Pfc | | 117/2nd | |
| Ogle, William | Pvt | | 118 Inf/L | |
| Oglensky, David | 1st Lt | O | 740 Tk | |
| Ogles, Thomas M. | MSgt | | 117/SV | |
| Oglesby, George W. | Pvt | | 113 FA/D | |
| Oglesby, Paul | Pvt | | Unk | |
| Oglesby, Thomas B. | MSgt | | 120/SVC | |
| Ognosky, Jesse A. | Sgt | | 823 TD/C | |
| Ogren, Leslie G. | | | Unk | |
| Ogresky, Frank | Pvt | | 117 | |
| Ogulin, John J. | Cpl | | 120/E | |
| Ohlendorf, Alfred J. | | | 531 AAA/Btry A | |
| Ohler, James F. | Pfc | | 120/Unk Co | |
| Ohlin, Willard | | | 531 AAA/Btry D | |
| Oistad, Herman | Pvt | | 117/AT | |
| Oistad, Herman O. | T/5 | | 117 | |
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