Wijnsermolen (West Frisian: Wynzermûne) is a smock mill in Wyns, Friesland, Netherlands which is currently (2011) being restored to working order.

[2] The mill was in need of renovation by 1926 and the option of installing an electric pump was considered but this proved too expensive.

These changes improved efficiency but made the mill susceptible to over speeding in blustery winds.

In this year the drive wheels and upright shaft were removed and put to one side and a diesel engine from windmill De Hoop, Roodkerk was installed.

The windmill slowly fell into disrepair and demolition was considered before it was taken over by Stichting De Fryske Mole and restored in 1995.

Since then it is operated by volunteer millers and is designated as a backup pumping station in case of emergencies.

The four common sails with Fok system have a span of 19.50 metres (64 ft 0 in) and are carried on a cast-iron windshaft cast by foundry De Prins van Oranje in 1889 as number 1360.