Cognomen الضو (الضو 
) , all around the world, is a common family name. The surname الضو is characteristic of Sudan, where it is quite a common surname, Egypt, where it is quite a rare surname, and Saudi Arabia. Very seldom, الضو is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| الضو | Morocco, Egypt, Libya, Sudan, Saudi Arabia |