Last name סימיוני (Simioni 
, Simeoni , סימיוני 
) , around the globe, is a common family name. The cognomen סימיוני is characteristic of Monaco, where it is quite a common surname, Italy, and Switzerland, where it is quite a rare surname. Measured by absolute frequency, the name is most common in Italy, Brazil, and France. Much less frequently, סימיוני is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Simeoni, Simioni | Tanzania, France, Argentina, Italy, Brazil |
| סימיוני | Israel |