Cognomen 凯莉 (Kayleigh 
, Kaylee 
, 凯莉 ) , globally, is quite a common surname. The surname 凯莉 is habitual in Bahrain, where it is quite a rare surname, United Arab Emirates, where it is a rare surname, and Ghana. Measured by absolute frequency, it is commonest in China, the United States, and the Democratic Republic of the Congo. More prevalently, 凯莉 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kayleigh | United Kingdom, Australia, United States, New Zealand, Ireland |
| Kaylee | United Kingdom, Australia, United States, New Zealand, China |
| 凯莉 | China |
| Kaley | United Kingdom, Australia, United States, New Zealand, Democratic Republic of the Congo |