Last name Neisan (Neisan 
) , around the globe, is an extremely rare cognomen. The surname Neisan is habitual in Malaysia, where it is a very rare surname, Venezuela, where it is an extremely rare surname, and the United States. Predominantly, Neisan is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Neisan | Japan, Spain, Colombia, United States, India |