Cognomen Flaithearta (Flaithearta 
) , all over the world, is a very rare surname. The surname Flaithearta is characteristic of Northern Europe, particularly Ireland, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Flaithearta | Ireland |
|
liam ó flaithearta Irish writer, IE (b. 1896) |
|
| tom saili o flaithearta actor |
|
|
| maidhc ó flaithearta |
|