Surname Dayns (Dayns 
) , in the world, is a very rare cognomen. The last name Dayns is characteristic of Bulgaria, where it is a rare surname, Venezuela, where it is an extremely rare surname, and the United States. Very seldom, Dayns is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dayns | Venezuela, United States, Peru, Bulgaria |