Huygens (also Huijgens, Huigens, Huijgen/Huygen, or Huigen) is a Dutch patronymic surname, meaning "son of Hugo". People with the name Huygens include:
- People
- Constantijn Huygens (1596–1687), Dutch poet and composer
- Christiaan Huygens (1629–1695), Dutch mathematician, physicist and astronomer, son of Constantijn Huygens
- Constantijn Huygens, Jr. (1628–1697), Dutch statesman, soldier, and telescope maker, son of Constantijn Huygens, and older brother of Christiaan Huygens
- Lodewijck Huygens (1631–1699), the third son of Constantijn Huygens
- Léon Huygens (1876–1918), Belgian painter
- Jan Huyghen van Linschoten, (1563–1611), Dutch voyager and historian
- Named after Christiaan Huygens
- Huygens' principle
- Cassini–Huygens, mission to Saturn and Titan
- Huygens probe is the portion of the Cassini–Huygens mission which landed on Saturn's moon Titan on January 14, 2005
- 2801 Huygens, an asteroid named after the astronomer
- Huygens Software, a microscope image processing package
- Huygens, one of Mars' craters
- Mons Huygens, a mountain of Earth's Moon
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