Liquidator may refer to:
- Liquidator (law), the officer who collects the assets of and settles the claims against a company before dissolving it
- Estate liquidator, the person given the job of personal estate liquidation
- Computer liquidator, a purchaser and reseller of computer technology and related equipment
- Liquidator (Chernobyl), disaster-remediation worker
- Liquidator, a member of one of the factions of the RSDLP (Russian Social Democratic Labor Party)
- Liquidator or Super Liquidator, a water gun sold in Italy in the 1990s, similar to Super Soaker
- "The Liquidator" (instrumental), a reggae instrumental by the Harry J Allstars
- The Liquidator (novel), the first novel of John Gardner
- The Liquidator, a 1965 British spy film, adaptation of the novel, starring Rod Taylor
- The Liquidator (soundtrack) the soundtrack to the 1965 film by Lalo Schifrin
- The Liquidator, a 2011 Kazakh action thriller
- The Liquidator (Darkwing Duck), fictional character in television animation