Cognomen Sengchanh (Sengchanh 
) , in all the world, is quite a rare last name. The cognomen Sengchanh is habitual in Laos, where it is quite a common surname, Latvia, where it is a rare surname, and France. Measured by absolute frequency, it is the most numerous in Laos, the United States, and France. Likewise, Sengchanh is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sengchanh | Mali, France, Thailand, Laos, United States |