Family name Kaushan (Kaushan 
) , all over the world, is quite a rare last name. The surname Kaushan is habitual in Sri Lanka, where it is quite a rare surname, India, where it is an extremely rare surname, and Russia. Likewise, Kaushan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kaushan | Russia, Tanzania, India, United States, Sri Lanka |