Voroshilov (feminine: Voroshilova) is a Russian-language surname. It may refer to:
- Ekaterina Voroshilova, spouse of Kliment Voroshilov, formally First Lady of the Soviet Union in 1953-1960
- Kliment Voroshilov (1881–1969), Marshal of the Soviet Union
- Marina Voroshilova (1922-1986), Soviet virologist
- Viktor Voroshilov (1926-2011), Soviet footballer
- Vladimir Voroshilov (1930—2001), Russian TV personality