All over the world, Cathaoir (Cathaoir 
) is an extremely rare male first name. More prevalently, Cathaoir is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Cathaoir | Ireland, Myanmar, United Kingdom, Germany |
| cathaoir mac cába Mac Cába, Cathaoir (fl. 1728–1739), poet and harper, IE |
|
|
| cathaoir mac airt macmurrough-kavanagh |
|
|
| cathaoir macmurrough-kavanagh |
|