P87 may refer to:
Curtiss XP-87 Blackhawk, an American prototype fighter aircraft Henschel Projekt P.87, a proposed German bomber aircraft , a patrol boat of the Royal Australian Navy p87PIKAP, phosphoinositide-3-kinase adapter protein of 87 kDa Papyrus 87, a biblical manuscript Serenade in D major, P. 87, by Michael Haydn WM P87, a sports prototype race car P87, a common term for Proto:87, a standard governing fine-scale model railroad tracks and wheels P87, state regional road in Latvia