HSK may refer to:
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Look up HSK in Wiktionary, the free dictionary.
- H. S. Krishnaswamy Iyengar
- Hanyu Shuiping Kaoshi or Chinese Proficiency Test
- Hassocks railway station, a railway station in Sussex, England
- Helsingfors Segelklubb, a Finnish sailing club
- Helsingfors Skridskoklubb, a Finnish figure skating club
- Henderson Silver Knights, an American Hockey league team based in Henderson, Nevada.
- Homoserine kinase, an enzyme
- Horrendous Space Kablooie, a Calvin and Hobbes reference to the Big Bang
- Hung Shui Kiu station in Hong Kong (MTR station code)
- Hung Shui Kiu stop in Hong Kong (MTR Light Rail station code)
- Huesca–Pirineos Airport, in Spain
- Handels-Stör-Kreuzer, a German auxiliary cruiser
- Hohlschaftkegel ("hollow shank taper"), a form of machine taper