Langøy or Langøya can refer to:
Places Langøya, a large island located in Vesterålen in Nordland county, Norway Langøya, Sandefjord, an island in Sandefjord municipality in Vestfold county, Norway Langøy, Møre og Romsdal, a village in Averøy municipality in Møre og Romsdal county, Norway Langøy, Telemark, an island in Kragerø municipality in Telemark county, Norway Langøy, or Lang Island (Antarctica), an island in Antarctica
People Leif-Arne Langøy (born 1956), a Norwegian businessperson
See also Langøyene, "the Langøy islands" in Oslo, Norway