P82 may refer to:
- Boulton Paul P.82 Defiant, a British interceptor aircraft
- , a patrol boat of the Royal Australian Navy
- , a submarine of the Royal Navy
- North American XP-82 Twin Mustang, an American fighter aircraft
- Papyrus 82, a biblical manuscript
- WM P82, a French sports prototype racing car
- P82, a state regional road in Latvia