Oosterschelde is a three-masted topsail schooner from the Netherlands, built in 1918. She is the largest restored Dutch freightship and the only remaining Dutch three-masted topsail schooner. Her home port is Rotterdam.
As a freighter with a deadweight of 400 tons, she transported mainly clay, stone and wood, but also herring, bran, potatoes, straw and bananas. In the 1930s, a heavier diesel engine was installed and some sail-rigging was removed (including the aft mast). In 1939, she was sold to a Danish shipping company and, rebaptised Fuglen II, became one of the most modern ships in the Danish fleet. In 1954, she was sold to a Swede, renamed Sylvan and thoroughly rebuilt to a modern motorised coaster.