Petrel can refer to

• Petrel, a type of tube-nosed seabird

Aviation and rocketry

• Percival Petrel, a 1930s British communications aircraft
• Petrel (rocket), a British sounding rocket
• AUM-N-2 Petrel, an antisubmarine missile used by the U.S. Navy in the 1950s, later designated AQM-41A as a target drone

Ships

• USS Petrel, a name used by four United States Navy ships
• HMS Peterel, an archaic form of "Petrel" used as a name by seven Royal Navy ships
• MV Petrel, a United States Bureau of Fisheries patrol boat in service from 1919 to 1934 that previously served in the United States Navy as USS Cobra (SP-626)
• RV Petrel, a research vessel
• Petrel (ship, 1928), a whaler, built in Oslo, left to rust after being beached in Grytviken, South Georgia

Geographic locations

• Petrel Base, an Argentine base in Antarctica
• Petrel Island (disambiguation)
• San Antonio de Petrel, a town in Chile
• Petrel, an alternate spelling for the town of Petrer in Alicante, Spain

Other uses

• Petrel (reservoir software), petroleum reservoir software
• Petrel (maxace knives), MaxAce Knives "Petrel" balisong knife