Family name Addair (Addair 
) , all over the world, is a rare surname. The family name Addair is habitual in the United States, where it is a rare surname, New Zealand, where it is a very rare surname, and Venezuela, where it is an extremely rare surname. In absolute terms, it most frequently occurs in the United States, Mexico, and New Zealand. Much less frequently, Addair is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Addair | Mexico, Colombia, Brazil, United States, New Zealand |