Cognomen จันทร์แก้ว (Chankaew 
, Jankaew 
, Chankaeo ) , all around the world, is quite a common family name. The cognomen จันทร์แก้ว is habitual in Thailand, where it is quite a rare surname, Sweden, where it is a rare surname, and the United States, where it is an extremely rare surname. Much less frequently, จันทร์แก้ว is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Chankaew | Sweden, United States, Thailand |
| Jankaew | Malaysia, United States, Thailand, New Zealand |
| Chankaeo | United States, Thailand |
Chanakaeo, Chanakaew, Chanchaew, Chansakaew, Chansrakaeo, Jandakaew, Jandkaew, Janinkaew, Jankaenkaew, Jankaeo, Jankaewra, Jankaewrae, Jankaoukaew, Jankhaew, Jannokaew, Jannorkaew, Jansakaew, Jansakeaw, Janyakaew, Jhankaew, and Monday
| เกษม จันทร์แก้ว TH (b. 1938) |
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