P38 or P-38 may refer to:
Biology and medicine
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Multisynthetase complex auxiliary component p38
*
p38 mitogen-activated protein kinases
p38 mitogen-activated protein kinases are a class of mitogen-activated protein kinases (MAPKs) that are responsive to stress stimuli, such as cytokines, ultraviolet irradiation, heat shock, and osmotic shock, and are involved in cell different ...
*
RPP38, ribonuclease P protein subunit p38
Military
* , a
P-class sloop
The P class, nominally described as "patrol boats", was in effect a class of British coastal sloops. Twenty-four ships to this design were ordered in May 1915 (numbered ''P.11'' to ''P.34'') and another thirty between February and June 1916 (num ...
of the Royal Navy
* , a submarine of the Royal Navy
*
Lockheed P-38 Lightning, an American fighter aircraft
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P-38 can opener
The P-38, developed in 1942, is a small can opener that was issued in the canned field rations of the United States Armed Forces from World War II to the 1980s. Originally designed for and distributed in the K-ration, it was later included in t ...
, issued by the United States Armed Forces
*
Walther P38
The Walther P38 (originally written Walther P.38) is a 9 mm semi-automatic pistol that was developed by Carl Walther GmbH as the service pistol of the Wehrmacht at the beginning of World War II. It was intended to replace the costly Luger P08 ...
, a pistol
Other uses
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Mitchell Wing P-38, an American ultralight aircraft
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Papyrus 38, a biblical manuscript
*
Phosphorus-38, an isotope of phosphorus
*
Range Rover (P38A), a SUV
* Porax-38, a
starfighter from the ''Star Wars'' fictional universe
{{letter-number combination disambiguation