A weevil is a beetle from the Curculionoidea superfamily. They are usually small (less than 6mm) and herbivorous. Due to the shape of their heads, weevils are commonly known as 'snout beetles'.

Weevils are destructive to crops. The grain or wheat weevil (Sitophilus granarius) damages stored grain. The boll weevil (Anthonomus grandis) attacks cotton crops. Biscuit weevils (Stegobium paniceum) were previously known for eatting the biscuits on board ships. The Zyzzyva weevil is a genus of tropical American weevil.