Surname นิสสัย (นิสสัย 
, Nissai 
) , worldwide, is a rare cognomen. The last name นิสสัย is habitual in Thailand, where it is a rare surname, Japan, and Nigeria, where it is an extremely rare surname. Likewise, นิสสัย is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| นิสสัย | Thailand |
| Nissai | Japan, France, Thailand, United States, Nigeria |