Cognomen Koshika (Koshika 
) , in the entire world, is a rare surname. The last name Koshika is habitual in India, where it is a very rare surname, the United Kingdom, where it is an extremely rare surname, and Brazil. Likewise, Koshika is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Koshika | Japan, China, South Africa, United States, India |