A city, the county seat of Bergen County, New Jersey, United States. / A city in Cass County, Minnesota, United States, named after Hackensack in New Jersey.

A park, a neighbourhood and railway station of London in borough of Hackney, Greater London (OS grid ref TQ3485).

A suburban village in the Metropolitan Borough of Sheffield, South Yorkshire, England (OS grid ref SK4183).

Alternative form of hackneyed

plural of hackbot

(computing) A bot (automated user) designed to hack into a system.

(obsolete) A writer for hire.

A valley and locality in Hampstead Norreys parish, West Berkshire, Berkshire, England (OS grid ref SU5377).