Dactyl may refer to:
- Dactyl (mythology), a creature in Greek mythology
- Dactyl (poetry), a metrical foot consisting of one long syllable and two short
- Dactyl (moon), the small natural satellite orbiting the asteroid Ida
- Finger, in medical terminology, from the Greek δάκτυλος
- The movable part of crustacean claws/pincers
- Dactyl Foundation, an arts organization in New York City, founded by Neil Grayson and Tori Alexander in 1996
- Dactyl, a character in the Mega Man X video game series