Last name กฤตพุทธิธรรม (กฤตพุทธิธรรม 
) , in all the world, is a very rare family name. The last name กฤตพุทธิธรรม is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| กฤตพุทธิธรรม | Thailand |
วรพนิต, ณรงค์ฤทธ์, and ณรงค์ฤทธิ์