Cognomen Deiw (Deiw 
) , throughout the world, is a very rare last name. The last name Deiw is habitual in South Africa, where it is a very rare surname, Philippines, where it is an extremely rare surname, and India. More frequently, Deiw is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Deiw | South Africa, Philippines, Brazil, India, Indonesia |