| Ferox is a Latin word meaning "wild, ferocious, cruel." It may refer to: Animals
 *Alepisaurus ferox, a predatory fish of the family Alepisauridae
 *Amaurobius ferox, a spider of the family Amaurobiidae
 *Apalone ferox, a soft-shell turtle of the family Trionychidae
 *Bathysaurus ferox, a lizardfish of the family Synodontidae
 *Cryptoprocta ferox, a carnivore of the family Eupleridae
 *Megalictis ferox, an extinct carnivorous mustelid
 *Myiarchus ferox, a bird of the family Tyrannidae
 *Odontaspis ferox, a sand shark of the family Odontaspididae
 *Salmo ferox, a species of brown trout
 *Stomias boa ferox, a subspecies of dragonfish
 Plants
 *Aconitum ferox, a flowering plant of the family Ranunculaceae
 *Euryale ferox, a flowering plant of the family Nymphaeaceae
 *Pseudopanax ferox, a small tree endemic to New Zealand (also known as the toothed lancewood)
 *Urtica ferox, a poisonous tree of New Zealand
 Other
 *Cannibal Ferox, a 1981 film by Umberto Lenzi (also known as Make Them Die Slowly)
 *Regna Ferox, a fictional place in the video game Fire Emblem Awakening
 
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