Bananafish or banana fish may refer to:

• "A Perfect Day for Bananafish", a short story by J. D. Salinger

• Banana Fish, a manga series by Akimi Yoshida

• Bananafish Magazine, an underground culture magazine

Music

• "Bananafishbones", a song by The Cure from The Top

• "Bananafish no Hamabe to Kuroi Niji", a song by Galileo Galilei from See More Glass

• "Banana Fish", a song by Shonen Knife from Burning Farm

Species

• Albula neoguinaica and Albula vulpes, two species of bonefishes

• Double-lined fusilier, or banana fish

• Elops hawaiensis, or banana fish

• Elops machnata, or banana fish

• Horseface loach, or banana-root fish

• Pterocaesio pisang, or banana fusilier

• Bonefish, or banana fish