P29 may refer to:
Aircraft Boeing P-29, an American prototype fighter aircraft Boulton Paul P.29 Sidestrand, a medium bomber of the Royal Air Force Percival P.29 Proctor, a British radio trainer and communications aircraft
Vessels , a cancelled submarine of the Royal Navy , a corvette of the Indian Navy , of the Armed Forces of Malta
Other uses P29 Highway (Kazakhstan), part of the AH7 road Papyrus 29, a biblical manuscript Phosphorus-29, an isotope of phosphorus Tombstone Municipal Airport, in Cochise County, Arizona, United States P29, a Latvian state regional road