Surname Кэролайн (Caroline 
, Carolyne , Kerolain 
) , around the world, is a widespread cognomen. The last name Кэролайн is characteristic of Nigeria, where it is quite a common surname, Guadeloupe, and Cameroon (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Nigeria, Indonesia, and Kenya. More prevalently, Кэролайн is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Carolyne, Caroline | Nigeria, France, Kenya, United States, Brazil |
| Kerolain | Brazil, India, Italy |
| Кэролайн | Russia |
Carla, Carlijn, Carlota, Carola, Caroleena, Carolien, Carolin, Carolina, Caroliny, Carolyn, Karlijn, Karoliina, Karolin, Karolina, Karoline, Karolyn, Karolína, Karolīna, Kerolayn, Καρολίνα, Караліна, Каролин, Каролина, Каролине, Кароліна, Керолін, קרוליין, קרולין, קרולינה, كارولين, كارولينا, カロリン, カロリーナ, カロリーネ, キャロライン, and 卡罗琳
Форбс, Лымарь, and Романченко