Borøya or Borøy may refer to: Places Borøya, Bærum, an island in the municipality of Bærum in Viken county, Norway Borøya, Kristiansand, an island in the municipality of Kristiansand in Agder county, Norway Borøya, Tvedestrand, an island in the municipality of Tvedestrand in Agder county, Norway