Cognomen ダット (Datt 
, Dutt , ダット 
) , worldwide, is a widespread last name. The surname ダット is characteristic of Fiji, where it is a common surname, Bermuda, where it is quite a common surname, and India. In absolute terms, it is commonest in India, Fiji, and the United States. Very seldom, ダット is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dutt, Datt | Bangladesh, Indonesia, Fiji, United States, India |
| ダット | Japan |