Recipients A–Z
Last names starting with “O”
68 Medal of Honor recipients.
68 recipients
| Name | Conflict | Action |
|---|---|---|
| James Rowan O'Beirne | Civil War | June 1, 1862 |
| George Herman O'Brien Jr. | Korean War | October 27, 1952 |
| Henry D. O'Brien | Civil War | July 3, 1863 |
| Oliver Albert O'Brien | Civil War | November 28, 1864 |
| Peter O'Brien | Civil War | March 2, 1865 |
| William Joseph O'Brien✦ | World War II | June 20 - July 7, 1944 |
| John O'Callaghan | Indian Campaigns | August 13, 1868 |
| Joseph Timothy O'Callahan | World War II | March 19, 1945 |
| Thomas O'Connell | Civil War | August 5, 1864 |
| James Francis O'Conner | Interim 1871–1899 | June 15, 1880 |
| Albert O'Connor | Civil War | April 1, 1865 |
| Timothy O'Connor | Civil War | July 28, 1864 |
| John O'Dea | Civil War | May 22, 1863 |
| Menomen O'Donnell | Civil War | March 14, 1864 |
| Timothy O'Donoghue | Civil War | May 5, 1864 |
| Edward Henry "butch" O'Hare | World War II | February 20, 1942 |
| Richard Hetherington O'Kane | World War II | October 23 - 24, 1944 |
| Robert Emmett O'Malley | Vietnam War | August 18, 1965 |
| John O'Neal | Interim 1871–1899 | April 12, 1872 |
| Richard William O'Neill | World War I | July 30, 1918 |
| Stephen O'Neill | Civil War | May 1, 1863 |
| William O'Neill | Indian Campaigns | September 29, 1872 |
| Michael O'Regan | Indian Campaigns | August 13 - October 31, 1868 |
| Thomas E. O'Shea✦ | World War I | September 29, 1918 |
| John Francis O'Sullivan | Indian Campaigns | December 8, 1874 |
| William Oakley | Spanish-American War | May 11, 1898 |
| Eugene Arnold Obregon✦ | Korean War | September 26, 1950 |
| Carlos Carnes Ogden Sr. | World War II | June 25, 1944 |
| Allan Masaharu Ohata✦ | World War II | November 30, 1943 |
| August Ohmsen | Interim 1871–1899 | August 21, 1884 |
| James K. Okubo✦ | World War II | November 4, 1944 |
| Yukio Okutsu | World War II | April 7, 1945 |
| Milton Lee Olive III✦ | Vietnam War | October 22, 1965 |
| Charles Oliver | Civil War | March 25, 1865 |
| Francis Oliver | Indian Campaigns | October 20, 1869 |
| Paul Ambrose Oliver | Civil War | May 15, 1864 |
| Michael Harold Ollis✦ | Afghanistan | August 28, 2013 |
| Anton Olsen | Spanish-American War | May 11, 1898 |
| Arlo Laverne Olson✦ | World War II | October 13, 1943 |
| Kenneth Lee Olson✦ | Vietnam War | May 13, 1968 |
| Truman O. Olson✦ | World War II | January 30 - 31, 1944 |
| Frank Harry Ono✦ | World War II | July 4, 1944 |
| John N. Opel | Civil War | May 5, 1864 |
| David Orbansky | Civil War | 1862 |
| Nicholas Oresko | World War II | January 23, 1945 |
| Bruno Raymond Abing Orig✦ | Korean War | February 15, 1951 |
| Francis Edward Ormsbee Jr. | World War I | September 25, 1918 |
| Harry Westley Orndoff | Boxer Rebellion | June 20 - 22, 1900 |
| Charles Alvin Orr | Civil War | October 27, 1864 |
| Moses Orr | Indian Campaigns | 1872 |
| Robert Levan Orr | Civil War | April 2, 1865 |
| John Ortega | Civil War | — |
| Jacob George Orth | Civil War | September 17, 1862 |
| John Osborne | Interim 1871–1899 | August 21, 1876 |
| Weedon Edward Osborne✦ | World War I | June 6, 1918 |
| William Henry Osborne | Civil War | July 1, 1862 |
| William Osborne | Indian Campaigns | 1872 |
| Christian Osepins | Interim 1871–1899 | May 7, 1882 |
| Albert Oss | Civil War | May 3, 1863 |
| Edward Albert Ostermann | Haiti 1915 | October 24, 1915 |
| Kazuo Otani✦ | World War II | July 15, 1944 |
| David George Ouellet✦ | Vietnam War | March 6, 1967 |
| Joseph R. Ouellette✦ | Korean War | August 31, 1950 |
| Jacob H. Overturf | Civil War | May 22, 1863 |
| Miles M. Oviatt | Civil War | August 5, 1864 |
| Michael Owens | Korea 1871 | June 11, 1871 |
| Robert Allen Owens✦ | World War II | November 1, 1943 |
| Joseph William Ozbourn✦ | World War II | July 28, 1944 |