Cognomen দাদা (Dada 
, দাদা 
) , globally, is a widespread family name. The family name দাদা is habitual in Nigeria, where it is quite a common surname, Dominica, and Algeria (explore the name in all countries). Measured by absolute frequency, it is the most numerous in Nigeria, India, and Algeria. Also, দাদা is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dada | Morocco, Cameroon, India, Nigeria, Algeria |
| দাদা | Bangladesh |