High Rise, High-Rise or Highrise may refer to:

• High-rise, a tall building or structure
• High-rise (fashion), a conservative type of fashion that contrasts with low-rise fashion
• High-Rise (horse), a Thoroughbred racehorse who won the Epsom Derby in 1998
• Highrise (formerly known as Sunrise), a web-based CRM application created by 37signals
• High-Rise (novel), a 1975 novel by J. G. Ballard

A tower block, high-rise, apartment tower, residential tower, apartment block, block of flats, or office tower is a tall building or structure used as a residential and/or office building. In some areas it may be referred to as an "MDU", standing for "Multi Dwelling Unit". In the United States, such a structure is referred to as an apartment building or office building, while a group of such buildings is called an apartment complex or office complex.