Kozakkenhaven is a marina and access point situated in De Hank, a dead side channel of the IJssel near the village of Veessen in Gelderland.

The harbour opened in its current form in January 2018 after a thorough renovation, and is managed by the Stichting Havenbeheer Veessen (SHV). It offers both permanent berths and visitor moorings, with a water depth of NAP −1.

20 m and facilities including shore power, showers, toilets, Wi-Fi, a trailer ramp, and waste disposal. The site also accommodates camper vans and is well placed for cycling and walking routes along the IJssel.

A five-metre-tall Bashkir/Cossack statue watches over the harbour, and a traditional Dutch windmill adds to the local character. A small ferry crossing is located close by.