P1, P01, P-1 or P.1 may refer to:
Computing, robotics, and, telecommunications DSC-P1, a 2000 Sony Cyber-shot P series camera model Sony Ericsson P1, a UIQ 3 smartphone Packet One, the first company to launch WiMAX service in Southeast Asia Peer 1, an Internet hosting provider Honda P1, a 1993 Honda P series of robots, an ASIMO predecessor
Media DR P1, a Danish radio network operated by Danmarks Radio NRK P1, a Norwegian radio network operated by the Norwegian Broadcasting Corporation SR P1, a Swedish radio network operated by Sveriges Radio Polonia 1, a Polish TV channel of the Polcast Television
Military P-1 Hawk, a 1923 biplane fighter of the U.S. Army Air Corps Kawasaki P-1, a Japanese maritime patrol aircraft (previously P-X) P-1 (missile), a Soviet anti-ship cruise missile
Science
Biology P1 antigen, identifies P antigen system P1 laboratory, biosafety -level-1 laboratory P1 phage, a bacterial virus SARS-CoV-2 Gamma variant, a strain of COVID-19 virus SARS-CoV-2 first detected in Manaus, Brazil in 2020 ATC code P01 Antiprotozoals, a subgroup of the Anatomical Therapeutic Chemical Classification System Pericarp color1 (p1), a gene in the phlobaphene biosynthesis pathway in maize C1 and P1 (neuroscience), a component of the visual evoked potential P1 nuclease, a nuclease that works on single-stranded DNA as well as RNA
Other sciences Period 1 of the periodic table Pollard's p − 1 algorithm for integer factorization P-ONE - a proposed neutrino detector P1 and P, three-dimensional space group numbers 1 and 2 (respectively)
Transportation
Automobiles P1 International, a car club founded in Leatherhead, Surrey, England Alfa Romeo P1, a 1932 Grand Prix car Allard P1, a 1949 British five seater two door sports saloon McLaren P1, a sports car succeeding the McLaren F1. Porsche P1, first electric car produced by Ferdinand Porsche in 1898 P-1, development code name of the Subaru 1500 automobile P1 race class in the Le Mans racing series
Aircraft Abrams P-1 Explorer, an American aerial survey aircraft Dewoitine P-1, a Dewoitine aircraft DFW P.1, a passenger aircraft development of the 1916 DFW C.V Paradise P-1 LSA, a Brazilian light-sport aircraft
Rail P1 (AirTrain Newark station), a station on AirTrain Newark, New Jersey, United States Alsace-Lorraine P 1, a German steam locomotives class LNER Class P1, a class of locomotive designed by Nigel Gresley
Other uses Front-runner, or position 1 (P.1) Papyrus 1, also known as P1, P, or , an early papyrus copy of part of the New Testament Walther P1, an aluminum-framed variant of the Walther P38 pistol Pioneer One, an open source web series P-1 (submarine), a fictional patrol craft in the animated TV series Marine Boy P-1 (mountain lion), a mountain lion that lived in the Santa Monica Mountain National Recreation Area The first year of school, Primary 1 or P1, in Scottish schools
See also
Pone (disambiguation) PL (disambiguation) PI (disambiguation) 1P (disambiguation) Π1 (disambiguation) (; romanized "p1"; pronounced "pi1")