In the world, 凱琳 (Karrin 
, 凱琳 
) is a rare largely feminine, but seldom male forename. The forename 凱琳 is habitual in Australia, where it is a rare female name, the United States, where it is a very rare primarily feminine, but very infrequently male name, and South Africa, where it is a very rare dominantly feminine, but infrequently masculine name. Not in comparison with a country's population, it is commonest in the United States, Australia, and China. Much less frequently, 凱琳 is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Karrin | Australia, Canada, United States, Sweden, Singapore |
| 凱琳 | China |
Carin, Catalina, Catarina, Caterina, Catharina, Catharine, Catherine, Cathie, Cathrine, Cathryn, Catrin, Chatrine, Ekaterina, Ekaterine, Iekaterina, Jekaterina, Jekatěrina, Kaarina, Kailin, Kaisa, Kajsa, Kareen, Karen, Karin, Karina, Karyn, Katalin, Katalina, Katariina, Katarina, Kataryna, Katarzyna, Katarína, Katerina, Kateřina, Katharina, Katherine, Kathie, Kathrine, Katia, Katie, Katja, Katri, Katriin, Katriina, Katrijn, Katrin, Katrina, Katrine, Kattalin,
凱琳 is also a name for the fictitious and mythical characters: Kaylynn Langerak , the fictional character from The Sims video game series, one of the most known non-playable characters of The Sims 2, The Sims 3; Velocity , the fictional character, Image United; Karrin Murphy , the fictional character in The Dresden Files book series and Karyn Sasabe , the character in the TV series Law & Order.