P11

P11 may refer to:

Aircraft

 * Curtiss P-11 Hawk, a fighter aircraft of the United States Army Air Corps
 * Lippisch P.11, a German bomber project
 * Piaggio P.11, an Italian-built trainer
 * PZL P.11, a fighter aircraft used by the Polish Air Force

Pistols

 * Heckler & Koch P11, an underwater pistol
 * Heckler & Koch HK4, a pistol used by the German military as the "P11"
 * Kel-Tec P-11, a semi-automatic pistol

Science

 * p11 protein
 * Pioneer 11, a space probe
 * Pseudomonas sRNA P11, a gene of the pathogen Pseudomonas aeruginosa

Surface vehicles

 * Infiniti G20 (P11), a compact executive car
 * Nissan Primera (P11), a family car
 * Norton P11, a motorcycle

Other uses

 * Kwekwe-Gokwe Highway, in Zimbabwe
 * Ndengereko language
 * NS Brendan Simbwaye, a patrol boat of the Namibian Navy
 * Painters Eleven, a Canadian artist group
 * Papyrus 11, a biblical manuscript