Pacu (disambiguation)

Pacu or pacú is the common name of several South American fishes.

• Piaractus mesopotamicus (Paraná River pacu), a South American ray-finned fish that is endemic to the Paraguay-Paraná River basin
• Piaractus brachypomus, knows as pirapitinga or red-bellied pacu
• Tambaqui (Colossoma macropomum), known as black pacu, black-finned pacu, giant pacu

PACU, Pacu or pacú may also refer to:

• Philippine Association of Colleges and Universities

• Post anesthesia care unit, a recovery area found in many medical facilities