HNS may refer to:
- hns, ISO 639-3 code for the Caribbean Hindustani language
- Hrvatski nogometni savez (Croatian Football Federation)
- Hrvatski narodni savez (Croatian National Alliance) (1998-2004), a former political party in the Vojvodina region of Serbia
- Hrvatska narodna stranka-Liberalni Demokrati (Croatian People's Party-Liberal Democrats), a political party in Croatia
- "Hack 'n' slay", alternate term for the Hack and slash video gaming genre
- Hacktivist News Service, a French alternative news service
- HNS, IATA and FAA LID code for Haines Airport in Alaska, United States
- Haruka na Sora, a Japanese video novel, sequel to Yosuga no Sora
- Hexanitrostilbene, an explosive
- HNS Convention, an international agreement on hazardous substances in the sea
- Sikorsky HNS-1, US Navy designation of the Sikorsky R-4 helicopter
- Hughes Network Systems, a subsidiary of Hughes Communications
- Huizhou Nanshan School, a private primary and secondary school in Guangdong, China
- Hyperosmolar nonketotic state, an alternate name for Hyperosmolar hyperglycemic state
This disambiguation page lists articles associated with the title HNS.
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