Sysoev

Sysoev is a Russian surname (Сысоев). It is a patronymic surname derived from the given name Sysoi (Сысой), a traditional Russian name. The suffix -ev denotes “belonging to” or “son of,” so Sysoev originally signified “son of Sysoi.” The given name Sysoi has historical usage in Russia, though its exact origin is not definitively established.

The surname is most common in Russia and is also found in other parts of the former Soviet Union, including Ukraine. Transliteration from Cyrillic yields variants such as Sysoev or Sysoyev, with feminine forms like Sysoeva. In some contexts and languages, other spellings such as Sisojev or Siseev may appear, reflecting differences in transcription standards.

Notable people with the surname include Igor Sysoev, a Russian software engineer best known for creating the Nginx web server. Beyond him, bearers of the name appear in various fields such as sports, academia, and the arts, reflecting the surname’s broad distribution in Russian-speaking regions.