- Any of numerous species of prehistoric cat-like mammals (principally in the subfamily Machairodontinae), characterized by massive, but short, legs and two large canine teeth, each about seven inches long and shaped like a saber.
- false saber-toothed cat (family: †Nimravidae)
- marsupial sabre-tooth (family: †Thylacosmilidae)
- marsupial lion (family: †Thylacoleonidae)
sabre-toothed tiger — see sabre-toothed tiger