Last name 啟 (Kai 
, 啟 , Qǐ , along with others...) , across the world, is a common cognomen. The family name 啟 is characteristic of Malaysia, where it is a common surname, Macao, where it is quite a common surname, and Lebanon (explore the name in all countries). In absolute terms, this name is the most popular in Malaysia, China, and Myanmar. Likewise, 啟 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Kai | Germany, China, Malaysia, India, Myanmar |
| 啟, Qǐ | China |
| Khé | Vietnam, South Africa |
| 계 | South Korea |
Akira, Gye, Kay, Khe, Kie, Kje, Kye, Kyeh, Qi, Sheng, Акира, Акіра, Кай, Ке, Ци, קאי, أكيرا, كاي, アキラ, カイ, ケ, ゲ, チー, 亞基拉, 亨, 享, 亮, 光, 公, 凯, 凱, 卡伊, 叡, 启, 周, 哲, 啓, 彬良, 彰, 彰良, 徹, 憲, 斌, 旦, 旭, 旻, 昌, 明, 明良, 昭, 昭良, 昶, 晃, 晄, 晟, 晶, 智, 暁, 朗, 東, 桂, 滉, 玲, 璋, 皓, 睿, 秋良, 章, 章良, 粲, 聡, 聰, 融, 行, 証, 詮, 諦, 證, 輝, 鑑, 陽, 顕, and 顯