P33

P33, P-33 or P.33 may refer to:

Vessels

 * ARA Granville, a corvette of the Argentine Navy
 * GNS Stephen Otu, a patrol boat of the Ghana Navy
 * HMS P33 (1916), a P-class sloop of the Royal Navy
 * HMS P33 (1941), a submarine of the Royal Navy
 * INS Abhay (P33), a corvette of the Indian Navy

Other uses

 * Boulton & Paul P.33 Partridge, a British prototype fighter aircraft
 * Cochise County Airport, in Cochise County, Arizona, United States
 * Consolidated XP-33, an American prototype fighter aircraft
 * Papyrus 33, a biblical manuscript
 * Phosphorus-33, a radioactive isotope of phosphorus
 * P33, a state regional road in Latvia