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