Douanehaven is a customs harbor located at Tolkamer, on the Boven-Rijn in the Netherlands.

It serves as essential infrastructure for border cargo handling along this busy stretch of the Upper Rhine waterway, which forms part of a major European inland shipping corridor carrying approximately 200 million tons of freight annually.

The harbor sits within the broader network of the Bijlands Kanaal, a route designed to accommodate deep-draft barges typical of Rhine shipping.

Oversight of vessel movements, water levels, and currents in the area is maintained by Rijkswaterstaat monitoring stations, helping to manage the heavy commercial traffic that passes through this border region.