Family name Kay-An (Kay-An 
) , around the globe, is a very rare surname. The surname Kay-An is habitual in South-eastern Asia, particularly Philippines, where it is a very rare surname. Much less frequently, Kay-An is the forename as well as the last name. Parts of the name also exists independently as a first name Kay, and a last name An.
| VARIANT | COUNTRY |
|---|---|
| Kay-An | Philippines |
Manny, Agnes, Rexton, Mariano, Maylynn, Sito David, Araceli, Marietta, Magdalina, Cherry Lyn, and Mary Cleofe