Foldnutfonna is a glacier in Wedel Jarlsberg Land at Spitsbergen, Svalbard. It has an extension of about three kilometers, is a part of the Recherchebreen complex, and is located between Foldnutane, Haugknatten and Konglomeratfjellet.
Coordinates: 77°23′08″N 14°48′15″E / 77.3856°N 14.8041°E