Cognomen Terkan (Terkan 
) , around the globe, is a rare family name. The surname Terkan is habitual in Turkey, where it is a rare surname, Georgia, where it is a very rare surname, and Malaysia. Measured by absolute frequency, it is the most numerous in Turkey, Malaysia, and the United States. Much less frequently, Terkan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Terkan | Turkey, Malaysia, Georgia, United States, Nigeria |