Cognomen Breatnach (Breatnach 
) , throughout the world, is a very rare surname. The surname Breatnach is characteristic of Ireland, where it is a rare surname, Australia, where it is a very rare surname, and the United Kingdom.
| VARIANT | COUNTRY |
|---|---|
| Breatnach | Australia, Ireland, United Kingdom |
| máire breatnach Irish fiddler, IE (b. 1953) |
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| osgur breatnach (b. 1950) |
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| cormac v breatnach researcher ORCID ID = 0000-0002-5871-3236 |
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| liam breatnach academic |
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| colm r breatnach researcher (ORCID 0000-0002-1453-8050) |
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