P84 may refer to:
* , a patrol boat of the Royal Australian Navy
*
Hunting-Percival P.84 Jet Provost, a British trainer aircraft
*
p87PIKAP, phosphoinositide-3-kinase adapter protein of 87 kDa
*
Papyrus 84
Papyrus 84 (in the Gregory-Aland numbering), designated by 𝔓84, is a copy of the New Testament in Greek. It is a papyrus manuscript of the four Gospels. The surviving texts of Gospels are verses Mark 2:2-5,8-9; 6:30-31,33-34,36-37,39-41; John ...
, a biblical manuscript
*
Polyimide P84
Polyimide (sometimes abbreviated PI) is a monomer containing imide groups belonging to the class of high-performance plastics. With their high heat-resistance, polyimides enjoy diverse applications in roles demanding rugged organic materials, suc ...
*
Republic XP-84 Thunderjet
The Republic F-84 Thunderjet is an American turbojet fighter-bomber aircraft. Originating as a 1944 United States Army Air Forces (USAAF) proposal for a "day fighter", the F-84 first flew in 1946. Although it entered service in 1947, the Thunde ...
, an American turbojet fighter-bomber
* P84, a
state regional road in Latvia
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