Family name Dhonnchadha (Dhonnchadha 
) , all over the world, is a very rare cognomen. The last name Dhonnchadha is habitual in Northern Europe, particularly Ireland, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| Dhonnchadha | Ireland |
| lil nic dhonnchadha Irish language scholar and language activist (1891-1984) (b. 1891) |
|
|
| bríd aine nic dhonnchadha researcher |
|
|
| darine ní dhonnchadha actress |
|