Surname Pisitjumnong (Pisitjumnong 
) , in all the world, is a very rare last name. The family name Pisitjumnong is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Pisitjumnong | Thailand |
Sanon, Samard, Chananon, Thananon, and Watcharanon