Surname Корнелий (Cornelius 
, Cornelio 
, Kornelio 
, among others...) , throughout the world, is a widespread cognomen. The last name Корнелий is characteristic of Guernsey, where it is a common surname, Antigua and Barbuda, and Saint Kitts and Nevis, where it is quite a common surname (explore the name in all countries). Measured by absolute frequency, it is the most numerous in Mexico, the United States, and Philippines. Likewise, Корнелий is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cornelius | Philippines, Mexico, South Africa, Nigeria, United States |
| Cornelio | Philippines, Brazil, Mexico, South Africa, United States |
| Kornelio | Philippines, Brazil, Tanzania, Mexico, United States |
| Корнелий | Kazakhstan, Russia, Bulgaria |
| Kornely | Brazil, Tanzania, India, United States, Germany |
| Kornelije | Bosnia and Herzegovina, Serbia, Croatia, United States |
| Korneliy | Brazil, United States |
| Kornelij | Croatia |
Cees, Corneille, Cornelha, Corneli, Cornelis, Corneliu, Cornelus, Cornil, Cornélio, Kees, Korneel, Kornel, Korneli, Kornelis, Kornelius, Korneliusz, Kornelíus, Kornél, Кес, Корнел, Корнели, Корнелио, Корнелис, Корнелиус, Корнель, Корнелій, Корнилий, קורנליס, קס, سيس, كورنيليس, كيس, 凯思, 凯斯, and 塞斯