P41

P41 or P-41 may refer to:

Vessels

 * ARA Espora (P-41), a corvette of the Argentine Navy
 * HNOMS Uredd (P41), a submarine transferred from the Royal Navy to the Royal Norwegian Navy
 * LÉ Orla (P41), a patrol vessel of the Irish Naval Service
 * SPANISH PATROL VESSEL Meteoro
 * P-41 Cormorán, a retired patrol boat of the Spanish Navy

Other uses

 * Papyrus 41, a biblical manuscript
 * Phosphorus-41, an isotope of phosphorus
 * Seversky XP-41, an American prototype fighter aircraft
 * P41, a Latvian state regional road
 * P41, a Mazda auto racing engine developed by Advanced Engine Research