Knifefish may refer to several knife-shaped fishes:
- The Neotropical or weakly electric knifefishes, order Gymnotiformes, containing five families:
- The featherbacks, family Notopteridae.
- The aba, Gymnarchus niloticus
- Four other unrelated fish species not in any of the above families:
- Knifefish (robot), an American military robot
|This disambiguation page lists articles associated with the same title.
If an internal link led you here, you may wish to change the link to point directly to the intended article.