Marina Den Oever is a sheltered, well-equipped yacht harbour situated on the IJsselmeer side of Den Oever, in North Holland.

It serves as a strategic nexus between the IJsselmeer, the Wadden Sea, and the North Sea, making it a popular stop for sailors seeking to transition between fresh and salt water.

The marina offers berths for both residents and visitors, with depths of 2–3 metres and good manoeuvrability on approach. No advance reservation is required; arriving boats moor at the reporting jetty and are assigned a berth by the harbour office.

The surrounding area adds to the marina's appeal. The Robbenoordbos forest lies directly adjacent, offering walking and cycling routes, while the fishing village of Den Oever is easily reached on foot or by bike.

From the nearby old fishing harbour, visitors can look out over the Waddenzee toward Texel and Den Helder.