Cognomen Deirish (Deirish 
) , in the entire world, is a very rare surname. The cognomen Deirish is habitual in Northern America, particularly the United States, where it is a very rare surname, and Canada, where it is an extremely rare surname. Much less frequently, Deirish is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Deirish | Canada, United States |