Peak

Peak may refer to:

Arts and Fashion

• The British English term for the part of a hat known as the visor in American English
• Peak Practice, a British television drama series
• Peak Performance, a sports clothing brand from Sweden
• Peak, a sneakers brand from China

Computing

• PEAKS (software) - a proteomic mass spectrometry software, used to identify and quantitate proteins/peptides.
• BIAS Peak – a professional audio editing program on the Apple platform

Geography and geology

• A mountain peak, see summit (topography)
• Hubbert peak theory or peak oil, a theory that oil production worldwide is expected to reach a maximum level after which it will decline
  • More specifically, a pyramidal peak, a mountaintop that has been sculpted by erosion to form a point

Mathematics and Physics

• The highest, or sometimes the highest and lowest (see peak-to-peak), points on a varying waveform
• Peak electricity usage times or peak demand, see Energy demand management
• Peak (geometry), an (n-3)-dimensional element of a polytope

Pharmacology

• Peak (pharmacology) or when a drug reaches its maximum plasma concentrations

Psychology

• Peak experiences

Transportation

• Another name for the rush hour
• The highest corner of a four-sided, fore-aft sail
• A nicknamed used to refer to the British Rail Class 44 diesel locomotives, and also classes 45 and 46

As a proper noun

• Peak Sport, Chinese sports apparel manufacturer
• Peak Records, a record label
• Peak to Peak Charter School

Proper geographical names include:

• Peak District in the Midlands of England
• Pikes Peak in Colorado, United States
• Victoria Peak in Hong Kong
• Peak, a village in Ya Tung, Cambodia
• Peak Castle, Derbyshire

Book title

• Peak (novel), written by Roland Smith.