Surname O'loughlin
Country and Region Rankings
| Country | Rank | Count |
| Saint-kitts-and-nevis | 111 | <1k |
| Anguilla | 506 | <1k |
| Ireland | 644 | 1.2k |
| Northern-ireland | 872 | <1k |
| Australia | 1123 | 3.6k |
| New-zealand | 1419 | <1k |
| South-korea | 2847 | <1k |
| Scotland | 4720 | <1k |
| Region | Rank | Count |
| Saint-kitts-and-nevis, Nevis | 269 | <1k |
| Ireland, Munster | 270 | <1k |
| Australia, Northern-territory | 544 | <1k |
| Northern-ireland, Ulster | 578 | <1k |
| Ireland, Connaught | 708 | <1k |
| New-zealand, West-coast-region | 708 | <1k |
| South-korea, Seoul | 753 | <1k |
| Australia, Victoria | 889 | 1.5k |
| Ireland, Leinster | 959 | <1k |
| Scotland, Outer-hebrides | 1100 | <1k |
| Scotland, Orkney | 1598 | <1k |
Famous People with surname O'loughlin
In Lists