The Lord Inchiquin | |
|---|---|
 The arms of the Barony of Inchiquin | |
| Baron Inchiquin | |
| In office 19 October 1968 – 20 May 1982 | |
| Personal details | |
| Born | Phaedrig Lucius Ambrose O'Brien 4 April 1900 |
| Died | 20 May 1982 (aged 82) |
| Nationality | British |
| Spouse |
Vera Winter (m. 1945) |
| Parent(s) | Lucius William O'Brien, 15th Baron of Inchiquin Ethel Jane Foster |
| Education | Eton College Magdalen College, Oxford Royal School of Mines, Imperial College London |
| Military service | |
| Allegiance |  United Kingdom |
| Branch/service |  British Army |
| Years of service | 1918 1940–1946 |
| Rank | Major |
| Unit | Rifle Brigade East Africa Intelligence corps |
| Battles/wars | World War II |
| Awards | Mention in Dispatches |
Phaedrig Lucius Ambrose O'Brien, 17th Baron Inchiquin (4 April 1900 – 20 May 1982) was a geologist. Additionally, he was the holder of a hereditary peerage in the Peerage of Ireland, as well as Chief of the Name of O'Brien and Prince of Thomond in the Gaelic Irish nobility.