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 | United Kingdom, Belgium, Italy, United States, France |
| Donne | United Kingdom, Italy, Madagascar, United States, France |
| Dawnn | United Kingdom, Philippines, Singapore, United States, Canada |
| Донн | Ukraine |