P87

P87 may refer to:


 * Curtiss XP-87 Blackhawk, an American prototype fighter aircraft
 * Henschel Projekt P.87, a proposed German bomber aircraft
 * HMAS Ardent (P 87), 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, state regional road in Latvia