Cognomen Songnisai (Songnisai 
) , around the globe, is a very rare family name. The family name Songnisai is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Songnisai | Thailand |
Kulranathiran, Waraporn, Patcharida, Kwanchanok, and Phatcharawadee