P56 may refer to:
* , a submarine of the Royal Navy
* , a patrol vessel of Indian Navy
*
Northrop XP-56 Black Bullet, an American prototype fighter aircraft
*
Papyrus 56
Papyrus 56 (in the Gregory- Aland numbering), signed by 𝔓56, is an early copy of the New Testament in Greek. It is a papyrus manuscript of the Acts of the Apostles, it contains only Acts 1:1.4-5.7.10-11.
The manuscript palaeographically has ...
, a biblical manuscript
*
Percival P.56 Provost, a British trainer aircraft
* P56, a
state regional road in Latvia
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