Petrus

• Petrus (given name)
• Petrus (surname)
• Petrus Borel, pen name of Joseph-Pierre Borel d'Hauterive (1809–1859), French Romantic writer
• Petrus Brovka, pen name of Pyotr Ustinovich Brovka (1905–1980), Soviet Belarusian poet

• Château Pétrus, a Pomerol Bordeaux wine producer
• Petrus (fish), a genus of ray-finned fish
• Petrus (beer), a brand of beer
• Pétrus (restaurant), London
• Pétrus (film), a 1946 French comedy film
• Petrus, a band with Ruthann Friedman that performed in 1968 in the San Francisco area

• Petrus killings, a series of executions in Indonesia between 1983 and 1985
• Petrus method, a speedcubing method
• {{in title|Petrus}}

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