Veterans beginning with the letter O
| Name | Branch | Conflict | County | Pillar | Panel |
|---|---|---|---|---|---|
| Oglesby, Alexander A. | Navy | World War II | Knox | VIII | Middle |
| Ohls, William A. | Army | World War I | Hamilton | III | Middle |
| Oldham, Edward | Army/Army Air Forces | World War II | Rhea | XVI | Bottom |
| Oles, Thomas D. | Army/Army Air Forces | World War II | Hamilton | X | Middle |
| Olinger, Thurman H. | Army/Army Air Forces | World War II | Sullivan | XVIII | Top |
| Oliphant, J. David | Army/Army Air Forces | World War II | McMinn | XV | Middle |
| Oliver, Perry L. | Navy | World War II | Hamilton | XII | Top |
| Oliver, Earl | Army/Army Air Forces | World War II | Washington | XV | Bottom |
| Oliver, Glen S. | Army/Army Air Forces | World War II | Sullivan | XVIII | Middle |
| Oliver, Bobby G. | Army | Vietnam | Knox | XXIII | Middle |
| Oliver, Michael P. | Army | Vietnam | Johnson | XXIII | Top |
| Olsakovsky, Albert M. | Army/Army Air Forces | World War II | Cocke | VIII | Middle |
| Onks, William G. | Army/Army Air Forces | World War II | Blount | VI | Middle |
| Oody, James W. | Army/Army Air Forces | World War II | Loudon | XV | Top |
| Ooten, Sam | Army | World War I | Roane | V | Top |
| Oreto, Joseph A. | Army | Vietnam | Bledsoe | XXII | Top |
| Orr, Alfred | Army | World War I | Hamilton | III | Middle |
| Orr, William L. | Army/Army Air Forces | World War II | Blount | VI | Top |
| Orr, George E. | Army/Army Air Forces | World War II | Hamilton | XI | Top |
| Orr, Charles D. | Marine Corps | Korean War | Blount | XX | Top |
