Last name ชุ่มชื้น (Moist 
, ชุ่มชื้น, Chumchuen 
) , worldwide, is quite a rare family name. The last name ชุ่มชื้น is characteristic of Thailand, where it is quite a rare surname, Estonia, where it is a rare surname, and the United States. Measured by absolute frequency, this name is the most popular in Thailand, the United States, and the United Kingdom.
| VARIANT | COUNTRY |
|---|---|
| Moist | Canada, United Kingdom, United States, New Zealand, Australia |
| Chumchuen | United States, Germany, New Zealand, Thailand, Singapore |