P59

P59, P-59 or P.59 may refer to:

Aircraft

 * Bell XP-59, a proposed American fighter aircraft
 * Bell P-59 Airacomet, an American jet fighter aircraft
 * Partenavia P.59 Jolly, a British prototype training aircraft

Vessels

 * HMS Untiring (P59), a submarine of the Royal Navy
 * INS Sumitra (P59), a patrol vessel of the Indian Navy
 * ORP Sokół (P59), a submarine of the Polish Navy

Other uses

 * p59, an alias of GRASP55, a protein
 * Papyrus 59, a biblical manuscript
 * P59, a state regional road in Latvia