- any of a genus (Tursiops) of marine dolphins with a bottle-shaped snout: an easily trained species (T. truncatus) is used in aquarium shows and scientific studyalso called bottle-nosed dolphin
- any of a genus (Hyperoodon, family Ziphiidae) of toothed whales having a similar beaklike snoutalso called bottle-nosed whale
- bottlenose dolphin.
- bottlenose whale.
- bottlenose skate.