P33, P-33 or P.33 may refer to:
Vessels
* , a corvette of the Argentine Navy
* , a patrol boat of the Ghana Navy
* , a
P-class sloop of the Royal Navy
* , a submarine of the Royal Navy
* , a corvette of the Indian Navy
Other uses
*
Boulton & Paul P.33 Partridge, a British prototype fighter aircraft
*
Cochise County Airport, in Cochise County, Arizona, United States
*
Consolidated XP-33, an American prototype fighter aircraft
*
Papyrus 33
Papyrus 33 (in the Gregory-Aland numbering), designated by symbol 𝔓33, is a copy of the New Testament in Greek. It is a papyrus manuscript of the Acts of the Apostles, it contains only Acts 7:6-10.13-18; 15:21-24.26-32. The manuscript paleo ...
, a biblical manuscript
*
Phosphorus-33
Although phosphorus (15P) has 23 isotopes from 25P to 47P, only 31P is stable; as such, phosphorus is considered a monoisotopic element. The longest-lived radioactive isotopes are 33P with a half-life of 25.34 days and 32P with a half-life of 14.2 ...
, a radioactive isotope of phosphorus
* P33, a
state regional road in Latvia
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