A wavelength is a property of a wave.
Wavelength may also refer to: Wavelength (album), a 1978 album by Van Morrison "Wavelength" (song), the album's title track Wavelength (band), a British soft rock band Wavelength (1967 film), a film by Michael Snow Wavelength (1983 film), a film by Mike Gray Wavelength (magazine), a surfing magazine Wavelength (game), a 2019 party game WaveLength, a charitable organisation in the United Kingdom Wavelength Music Arts Projects, a Toronto-based live music series Wavelength (DC Comics), a fictional villain from DC Comics "Wavelength" (Taggart), a 2000 television episode
See also De Broglie wavelength, the matter-wavelength associated with a massive particle