Cognomen สมิช (Smitch 
, สมิช 
) , around the world, is a rare family name. The cognomen สมิช is habitual in Myanmar, where it is a rare surname, Algeria, and Poland, where it is a very rare surname. Not in comparison with a country's population, it is commonest in Myanmar, Algeria, and the United States. Also, สมิช is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Smitch | Indonesia, Democratic Republic of the Congo, Myanmar, Algeria, United States |
| สมิช | Thailand |