Petrus may refer to:

People 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

Other uses 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

See also Petrus killings, a series of executions in Indonesia between 1983 and 1985 Petrus method, a speedcubing method