In the world, Caer (Kai 
, Carew 
, Caer 
) is a common unisex given name. The first name Caer is habitual in Macao, where it is quite a common epicene name, Guam, where it is quite a common female name, and Hong Kong, where it is quite a common mostly boy's, but seldom girly name (explore the name in all countries). In absolute terms, it most frequently occurs in India, Germany, and the United States. Also, Caer is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Kai | Germany, China, Malaysia, India, Myanmar |
| Carew | China, Malaysia, United States, India, Myanmar |
| Caer | United Kingdom, Malaysia, Australia, United States, Canada |
| Цаер | Kazakhstan, Russia |
Caer is also a popular name for the fictitious and mythical characters: Kai Bartley , the fictional character from Grey's Anatomy; Kai Shiden , the fictional character from Mobile Suit Gundam; Kai von Mölln , the character from Thomas Mann's Buddenbrooks; Kai , the imaginary figure from the TV series ''Lego Ninjago", The Lego Ninjago Movie and Kai , the character in The Legend of Korra, and in many other works.
Mr, Sandy, Alain, Andre, Artus, Cyril, Bruno, Kalyn, Kevin, Ronan, Roger, Louis, Lucie, Erwan, Irene, Idont, Odile, Marcel, Matheo, Morgan, Michel, Sophie, Murad, Steven, Mesut, Yves, Ms, Gã, Marc, Mill, Stã, Alex, Alan, Anne, Rene, Rudi, Loic, Ludo, Jose, John, Joel, Jean, Take, Tino, Hugo, Vika, Yann, Marie, and Syahir