Cognomen Донн (Donn 
, Donne 
, Dawnn 
) , throughout the world, is quite a common last name. The cognomen Донн is habitual in Belgium, where it is quite a rare surname, Jamaica, and Ghana. Not in comparison with a country's population, it is the most numerous in France, the United States, and the United Kingdom. Likewise, Донн is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Donn | France, United Kingdom, United States, Belgium, Italy |
| Donne | France, Madagascar, United Kingdom, United States, Italy |
| Dawnn | Philippines, Singapore, United Kingdom, Canada, United States |
| Донн | Ukraine |