Dolby may refer to:
- Dolby Laboratories (founded 1965), American company
- Dolby noise-reduction system (Dolby NR, invented 1965), a series of noise reduction systems for analog magnetic tape audio produced by Dolby Laboratories
- David Charles Dolby (1946–2010), American soldier
- Edwin Dolby (1838–1900), English architect
- Hugh Dolby (1888–1964), English footballer
- Peter Dolby (born 1940), English footballer
- Ray Dolby (1933–2013), American engineer
- Thomas Dolby (born 1958), English musician
- Tom Dolby (born 1975), American novelist
- Charlotte Sainton-Dolby (1821–1885), English contralto
- Dolby Theatre (founded 2001) in USA
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