Kalvøy or Kalvøya may refer to:
Places Kalvøya, Bærum, an island in Bærum municipality in Akershus county, Norway Kalvøya, Lillesand, an island in Lillesand municipality in Agder county, Norway Kalvøya, Nærøysund, an island in Nærøysund municipality in Trøndelag county, Norway Kalvøy, Stavanger, an island in Stavanger municipality in Rogaland county, Norway Kalvøya, Steinkjer, a peninsula in Steinkjer municipality in Trøndelag county, Norway Kalvøya, Svalbard, an island in Svalbard, Norway
See also Kalvø, a small, uninhabited island in southeastern Denmark