Cognomen มงคลสังข์ (มงคลสังข์ 
) , in the world, is a rare last name. The cognomen มงคลสังข์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| มงคลสังข์ | Thailand |
Mongkolsunk, and Mongkonsanga