Last name Sisoy (Sisoy 
) , in the world, is a rare cognomen. The cognomen Sisoy is characteristic of Philippines, where it is a very rare surname, Argentina, and the United States, where it is an extremely rare surname. Measured by absolute frequency, the name is most common in Philippines, Argentina, and India. Also, Sisoy is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sisoy | United States, India, Colombia, Argentina, Philippines |