Passantenhaven de Oude IJssel is a quiet marina on the Oude IJssel in the Hanseatic town of Doesburg, operated by Watersportvereniging de Oude IJssel.

Boaters reach it by passing through the Doesburg lock, which lifts vessels a few meters above the IJssel; the lock is low-turbulence and fitted with grab rails to make the transit straightforward.

The marina offers 10 visitor berths for vessels up to 25 meters, with a water depth of 4 meters. The harbor sits within walking distance of Doesburg's historic center, with its museums, restaurants, galleries, and shops.

A notable attraction on-site is the Netherlands' largest fish passage, which emerges within the marina grounds, allowing visitors to watch fish swimming past behind glass. The marina also has bicycles available for guest use.