Cognomen Kallistus (Kallistus 
) , all around the world, is an extremely rare last name. The family name Kallistus is habitual in Sub-Saharan Africa, particularly Nigeria, where it is an extremely rare surname. Likewise, Kallistus is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kallistus | South Africa, India, Nigeria |