Huygens (also Huijgens, Huigens, Huijgen/Huygen, or Huigen) is a Dutch patronymic surname, meaning "son of Hugo". Most references to "Huygens" are to the polymath Christiaan Huygens. Notable people with the surname include:

Named after Constantijn Sr

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Named after Christiaan Huygens

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Astronomy:

Physics:

Mathematics and games:

Microscopes: