Family name Deair (Deair 
) , around the globe, is a very rare cognomen. The family name Deair is characteristic of South Africa, where it is a very rare surname, Australia, and Mexico, where it is an extremely rare surname. More prevalently, Deair is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Deair | South Africa, Malaysia, Australia, United States, Brazil |