Surname มงคลวนิช (มงคลวนิช 
) , in the entire world, is a very rare cognomen. The last name มงคลวนิช is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| มงคลวนิช | Thailand |
|
พรชัย มงคลวนิช Thai academic, TH (b. 1958) |
|