Surname Raghallaigh (Raghallaigh 
) , all over the world, is a rare cognomen. The surname Raghallaigh is characteristic of Ireland, where it is quite a rare surname, the United Kingdom, where it is an extremely rare surname, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Raghallaigh | United States, Ireland, United Kingdom |
| máel ísa ó raghallaigh Irish musician, IE (b. 1636) |
|
|
| éadbhard ó raghallaigh Irish scholar (b. 1765) |
|
|
| tomás ó raghallaigh Irish writer, IE (b. 1883) |
|
|
| seán seosamh ó raghallaigh Gaelic footballer, IE (b. 1919) |
|
|
| pádraic ó raghallaigh IE (b. 1924) |
|
|
| caoimhín ó raghallaigh Irish musician, IE (b. 1979) |
|
|
| muireann ní raghallaigh researcher ORCID ID = 0000-0003-3144-8097 |
|
|
| riobárd ó raghallaigh IE |
|
|
| máirtín ó raghallaigh Gaelic footballer, IE (b. 1993) |
|