Surname Karolyn (Karolyn 
, キャロライン 
, קארולין 
) , in all the world, is a rare cognomen. The cognomen Karolyn is characteristic of Honduras, where it is a rare surname, Venezuela, and Hungary. In absolute terms, it is commonest in Latin America and the Caribbean, particularly Venezuela, Honduras, and Mexico. Much more frequently, Karolyn is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Karolyn | United Kingdom, Guatemala, Dominican Republic, United States, Brazil |
| キャロライン | Japan |
| קארולין | Israel |
Carla, Carlijn, Carlota, Carola, Caroleena, Carolien, Carolina, Caroline, Carolyn, Carolyne, Karlijn, Karoliina, Karolina, Karoline, Karolína, Καρολίνα, Караліна, Каролин, Каролина, Каролине, Кароліна, Керолін, Кэролайн, כארולין, קרוליין, קרולין, קרולינה, كارولين, كارولينا, カロリン, カロリーナ, カロリーネ, and 卡罗琳
Lee, Santos, Porter, Garcia, Taylor, Nelson, Harris, Howard, Hughes, Walker, Wilson, Wright, Stewart, Chapman, Pereira, Jackson, Johnson, Edwards, Anderson, Peterson, Robinson, Thompson, Miller, Morris, Martin, Young, Fox, Carr, Cruz, King, Lima, Hall, Moore, Silva, Souza, Scott, Oliveira, Smith, Adams, Clark, Baker, Brown, Davis, Lewis, Jones, Evans, Wells, White, Allen, and Williams