Around the globe, Delff (Delff 
, Делфт 
) is an extremely rare female given name. More prevalently, Delff is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Delff | Germany, Denmark, United States |
| Делфт | Ukraine |
| nicolaes cornelisz. van delff painter, glass painter (b. 1591) |
|