P19

P19 may refer to:

Aircraft

 * Aviamilano P.19 Scricciolo, an Italian trainer
 * Curtiss P-19, a cancelled American fighter design
 * P.Z.L. P.19, a Polish sports plane

Other uses

 * P19 cell, an embryonic carcinoma cell line
 * P-19 radar, a Soviet radar system
 * Papyrus 19, a biblical manuscript
 * RNA silencing suppressor p19
 * Stellar Airpark, in Maricopa County, Arizona, United States
 * P19, a Latvian state regional road