Olgastretet (English: Olga Strait) is a strait in the Svalbard archipelago, separating Edgeøya and Barentsøya from Svenskøya of the Kong Karls Land. The strait takes its name from Olga Nikolaevna of Russia (1822-1892).
Coordinates: 78°38′N 24°07′E / 78.633°N 24.117°E