Vasili or Vasily (Russian: Васи́лий) is a Slavic male given name of Greek origin and corresponds to Basil. It may refer to:
Surname:
- Laert Vasili (born 1974), Albanian actor
- Petrit Vasili, Albanian politician
Given name:
- Vasili I of Moscow Grand Prince from 1389-1425
- Vasili II of Moscow Grand Prince from 1425-1462
- Vasili III of Russia Tsar from 1505-1533
- Vasili IV of Russia Tsar from 1606-1610
- Basil Fool for Christ (1469-1557), also known as Saint Basil, or Vasily Blazhenny
- Vasily Chuikov (1900-1982), Soviet marschal
- Vasily Seseman (1884-1963), Russian and Lithuanian philosopher
- Vasily Smyslov (1921-2010), Soviet chess player
- Vasily Zaytsev, Soviet sniper
- Wassily Kandinsky, (1866-1944), Russian painter and art theorist.
Other:
- Vasili, a village in Cyprus
- Wassily Chair, 1920s furniture, named after Wassily Kandinsky
The surname Vasilyev (Russian: Васи́льев) is derived from the name. The surname Vasin (Russian: Ва́син) is derived from Vasya, a short form of the name.