P58

P58 may refer to:
 * Feinwerkbau P58, an air pistol
 * HMS Untamed (P58), a submarine of the Royal Navy
 * INS Sumedha (P58), a patrol vessel of the Indian Navy
 * Lockheed XP-58 Chain Lightning, an American prototype heavy fighter
 * Papyrus 58, a biblical manuscript
 * P58, a state regional road in Latvia