This invention is a new and distinct grapevine variety denominated ‘；IFG Thirty-seven’；. The new grapevine is characterized by producing naturally large seedless red berries having a broad ellipsoidal shape with a mild labrusca flavor. Fruits have medium firm texture and have excellent eating quality. Berries color readily even in hot climatic conditions and produce completely colored red berries. Vines are productive and can be pruned to short spurs. Berries are borne on large, loose but well filled clusters that do not require any additional thinning.
