Cognomen Demyd (Демид 
, Demyd 
) , around the globe, is a rare surname. The surname Demyd is habitual in Eastern Europe, particularly Belarus, where it is quite a rare surname, Ukraine, where it is a rare surname, and Russia, where it is a very rare surname. More frequently, Demyd is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Демид | Kazakhstan, Russia, Kyrgyzstan, Belarus, Ukraine |
| Demyd | Finland, United States, Canada, Ukraine |