Cornufer heffernani, sometimes known as the Solomon Island palm frog, is a species of frog in the family Ceratobatrachidae. It is endemic to the Solomon Islands archipelago where it can be found in at least Buka and Bougainville Islands of Papua New Guinea and Choiseul and Santa Isabel Islands of the Solomon Islands, but probably also more widely. The specific name heffernani honours Mr. N. S. Heffernan, who collected the type series.
Cornufer heffernani has a small, delicate, slender body and limbs. A syntype specimen of Hylella solomonis in the Senckenberg Museum measures 28 mm (1.1 in) in snout–vent length. The head is broader than the body and triangular in shape. The snout is broadly rounded and the eyes are large. The canthus rostralis and the tympanum are indistinct. The limbs are slender. Both the fingers and the toes are webbed and bear well-developed discs. Skin is smooth above but granular on the flanks, the belly, and under surface of the upper arm and thighs. Preserved specimens are purplish brown above and yellow below, fading to yellowish all over with time.
