An octave is the interval between one musical pitch and another with half or double its frequency.

Octave may also refer to:

Arts and entertainment Octave (album), by The Moody Blues Octave (poetry), a verse form consisting of eight lines of iambic pentameter Sicilian octave, a verse form consisting of eight lines of eleven syllables each Ottava rima, an Italian verse form Octave, a fictional character in the film Interstella 5555: The 5tory of the 5ecret 5tar 5ystem

Science and technology Octave (electronics), a logarithmic unit for ratios between frequencies GNU Octave, a high-level computer programming language Octave, an IT risk management method Octonion, originally octave, in hypercomplex algebra

People Octave (given name) including a list of people with the name Octave (musician) (born 1963), Romanian rock musician Dieuson Octave (born 1997), American rapper known as Kodak Black

Other uses Octave, Arizona, a place in the US Octave (horse) (foaled 2004), a thoroughbred racehorse Octave (liturgy), either the eighth day after a feast, or the whole period of those eight days Octave celebration, a religious celebration in Luxembourg Octave (unit), a British unit for measuring whisky List of storms named Octave, several tropical cyclones

See also

Octave band, a frequency band that spans one octave Law of Octaves, a concept from the history of the development of the periodic table of chemical elements