Fynshav () is a small coastal town and ferry port, with a population of 789 (1 January 2025), in Sønderborg Municipality, Region of Southern Denmark in Denmark.
Fynshav is located on the east coast of the island of Als 17 km northeast of Sønderborg.
Fynshav has ferry connections to Bøjden on the island Funen and to Søby on the island of ÃÂrø. The FynshavâÂÂBøjden route is operated by Molslinjen under the brandname Alslinjen and the FynshavâÂÂSøby route is operated by ÃÂrø Ferry.
Fynshav Boat Harbour is a small marina located south of the ferry port.