Family name Simsay (Simsay 
) , around the globe, is a very rare surname. The surname Simsay is habitual in Hungary, where it is a very rare surname, the United States, where it is an extremely rare surname, and Mexico. Very seldom, Simsay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Simsay | Mexico, Hungary, United States |
| simsay ildikó (1942–1997), HU (b. 1942) |
|