Blue Grotto

Blue Grotto may refer to:


 * Blue Grotto (Biševo), a cave on the Croatian island of Biševo
 * Blue Grotto (Capri), a cave on the Italian island of Capri
 * Blue Cave (Kastellorizo), a cave on the Greek Island of Megisti (Kastelorizo)
 * Blue Grotto (Malta), a cave in Malta
 * Blue Grotto, an area under the Manhattan end of the Brooklyn Bridge
 * Grotta dello Smeraldo, a cave at the Amalfi Coast in Italy
 * Blue Grotto, a dive resort in Williston, Florida