Globally, Carolus (Carlos 
, Charles , Carlo , and others...) is a prevalent boy's given name. The forename Carolus is characteristic of Argentina, where it is a prevalent masculine name, Nicaragua, and Cabo Verde, where it is a widespread masculine name (explore the name in all countries). Not in comparison with a country's population, this name is the most popular in Brazil, the United States, and Mexico. Much less frequently, Carolus is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Carlos, Charles, Carlo | Spain, Mexico, United States, Argentina, Brazil |
| Карл | Kazakhstan, Russia, Estonia, Belarus, Ukraine |
| Carolus | Spain, United States, France, Brazil, Venezuela |
| Шарль | Russia, Belarus, United States, Ukraine, Lithuania |
Carel, Carl, Carles, Carlina, Carline, Carlus, Carol, Carolin, Carolina, Caroline, Charel, Charlez, Charlon, Karal, Karalis, Karel, Karl, Karlo, Karlová, Karol, Karolin, Karolis, Károly, Kārlis, North Carolina, Siarl, South Carolina, Карай, Карал, Караль, Карел, Карла, Карлас, Карлес, Карло, Карлос, Карлуш, Карой, Карол, Каролис, Кароль, Каролюс, Царолус, Чарлз, Чарлс, Чарльз, Чарльз, Шарль, Шарл, צ'ארלס, קארוי,
Carolus is also a prevalent name for the fictitious and mythical characters: Luke Cage , the fictional character in Marvel Comics; Mr. Burns , the fictional character from The Simpsons franchise; Carlos the Scientist , the fictional character from the fiction podcast Welcome to Night Vale; Trip Tucker , the fictional character form Star Trek: Enterprise, Carpenter Street and Carl Johnson , the protagonist of the 2004 video game Grand Theft Auto: San Andreas, and in many other works.