From Wikipedia, the free encyclopedia
P23, p23, P-23, or P.23 may refer to:
- p23, the protein encoded by the PTGES3 gene
- The Piaggio P.23, an Italian transport aircraft prototype of 1935
- The Piaggio P.23R, an Italian transport aircraft prototype of 1936 of a design unrelated to that of the Piaggio P.23
- PZL P.23, the designation of prototypes of the PZL.23 Karaś, a Polish light bomber and reconnaissance aircraft produced from 1936 to 1938
- XP-23 Hawk, a fighter aircraft of the U.S. Army
- LÉ Aisling (P23), Irish warship
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