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


  • 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


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


  • Peak experiences


  • 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.

Famous quotes containing the word peak:

    You know, I often thought that the gangster and the artist are the same in the eyes of the masses. They’re admired and hero-worshipped but there is always present underlying desire to see them destroyed at the peak of their glory.
    Stanley Kubrick (b. 1928)

    I think I’ve been good, but I want to be better. I think women reach their peak in their mid-thirties.
    Mary Decker Slaney (b. 1958)

    Sleep shall neither night nor day
    Hang upon his penthouse lid;
    He shall live a man forbid;
    Weary sev’n-nights, nine times nine,
    Shall he dwindle, peak and pine;
    Though his bark cannot be lost,
    Yet it shall be tempest-tossed.
    William Shakespeare (1564–1616)