Blackfin (disambiguation)

Blackfin may refer to:
 * Blackfin, a family of embedded DSP microprocessors.
 * Blackfin cisco, member of the whitefish sub-family.
 * Black fin conger, an eel in the family Congridae.
 * Blackfin snake eel, or "highfin snake eel" of the family Ophichtidae.
 * Blackfin tuna, the smallest tuna species.
 * Black-finned anemonefish, of the family Pomacentridae.
 * Blue black-finned chub, a species of parrotfish.
 * "Black Fin", a 2021 song by Zior Park