Family name ไวทยธรรม (ไวทยธรรม 
) , in the entire world, is an extremely rare cognomen. The last name ไวทยธรรม is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| ไวทยธรรม | Thailand |
สงวน, and ทิพย์พรรณี