Cognomen Casmin (Casmin 
) , around the globe, is a rare surname. The last name Casmin is habitual in Saudi Arabia, where it is a rare surname, Philippines, where it is a very rare surname, and Indonesia. Likewise, Casmin is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Casmin | Indonesia, Saudi Arabia, Philippines, United States, Democratic Republic of the Congo |