Cognomen เลิศทรงวุฒิกุล (เลิศทรงวุฒิกุล 
, Lertsongwuthikul , Lertsongwuthikun ) , in all the world, is a rare family name. The surname เลิศทรงวุฒิกุล is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname.
| VARIANT | COUNTRY |
|---|---|
| เลิศทรงวุฒิกุล, Lertsongwutthikul, Lertsongwuthikun, Lertsongwuthikul | Thailand |