Willowcroft Fish Farm & Fisheries is a stillwater fishery situated at Willow Croft Farm, Seadyke, near Wisbech St Mary in Cambridgeshire. It lies within the North Level drainage landscape of the Fens and has been in operation since at least 1997.

The fishery is primarily known for carp and specimen coarse fishing, with carp and catfish among the key species available. Night fishing is permitted on site.

Match lakes are available, and the venue offers a range of facilities including disabled access, on-site toilets, food and drink, a tackle shop, and accommodation.