Surname 絲 (Seres 
, 絲 
, Sirgo 
) , all over the world, is a common family name. The last name 絲 is habitual in Eastern Europe, particularly Hungary, where it is quite a common surname, Romania, where it is quite a rare surname, and Slovakia. Not in comparison with a country's population, it is the most numerous in Hungary, China, and Romania. Very seldom, 絲 is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Seres | Romania, Hungary, France, United States, India |
| 絲 | China |
| Sirgo | France, Spain, United States, India, Mexico |