P81
# P81

P81 may refer to:

* Consolidated Vultee XP-81, an American experimental fighter aircraft
* HMAS Acute (P 81), a patrol boat of the Royal Australian Navy
* HMS Varne (P81), a submarine of the Royal Navy
* INS Katchall (P81), a corvette of the Indian Navy
* Papyrus 81, an early copy of the New Testament in Greek
* P81, a state regional road in Latvia
