HSK

• Helsingfors Segelklubb, a Finnish sailing club
• Helsingfors Skridskoklubb, a Finnish figure skating club
• Henderson Silver Knights, an American hockey team

• Hassocks railway station, Sussex, England
• Hung Shui Kiu station, Hong Kong
• Hung Shui Kiu stop, Hong Kong
• Huesca–Pirineos Airport, Aragon, Spain
• Handels-Stör-Kreuzer, a German auxiliary cruiser

• H. S. Krishnaswamy Iyengar
• Hanyu Shuiping Kaoshi or Chinese Proficiency Test
• Homoserine kinase, an enzyme
• Horrendous Space Kablooie, a Calvin and Hobbes reference to the Big Bang
• Hohlschaftkegel ("hollow shank taper"), a form of machine taper

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