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 The Sony Ericsson P1 is a smartphone and the successor of the P990. It was the last of the Sony Ericsson "P" Smartphone series, introduced in 2002 with the Sony Ericsson P800 and it integrates many of the hardware features of its predecessor the ...

, a UIQ 3 smartphone * Packet One, the first company to launch WiMAX service in Southeast Asia *

Peer 1 Aptum Technologies, formerly Cogeco Peer 1, is a provider of services for data centers and cloud computing.2016 Annual Report." Retrieved November 7, 2016. The company is headquartered in Toronto, Ontario, Canada. History Peer 1 Network Enterpr ...

, an Internet hosting provider * Honda P1, a 1993 Honda P series of robots, an ASIMO predecessor

Media

DR P1 DR P1 – in Denmark normally referred to as simply P1 – is a Danish radio station operated by the Danish Broadcasting Corporation. P1 has evolved into a pure voice channel with a focus on news, documentaries, political debates, education, gener ...

, a Danish radio network operated by Danmarks Radio *

NRK P1 NRK P1 is a nationwide digital radio channel operated by the Norwegian Broadcasting Corporation (NRK). It is the result of the NRK radio channel reform initiated in 1993 by radio director Tor Fuglevik. NRK P1 is the direct descendant of NRK's firs ...

, a Norwegian radio network operated by the Norwegian Broadcasting Corporation * SR P1, a Swedish radio network operated by Sveriges Radio *

Polonia 1 Polonia 1 is one of the first Polish commercial television channels, consisting at first of a network of 12 (and - for a short time - even 13) local TV stations in bigger cities. The station was established by Sardinian businessman Nicola Grauso, ...

, 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) The KSShch (russian: Корабельный снаряд «Щука» (КСЩ); tr.:''Korabelny snaryad Shchuka (KSShch)''; en, Shchuka Anti-Ship Missile, "Shchuka" – pike in English) was a Soviet anti-ship cruise missile design that carr ...

, a Soviet anti-ship cruise missile

Science

Biology

* P1

antigen In immunology, an antigen (Ag) is a molecule or molecular structure or any foreign particulate matter or a pollen grain that can bind to a specific antibody or T-cell receptor. The presence of antigens in the body may trigger an immune response. ...

, identifies P antigen system * P1 laboratory, biosafety -level-1 laboratory *

P1 phage P1 is a temperate bacteriophage that infects ''Escherichia coli'' and some other bacteria. When undergoing a lysogenic cycle the phage genome exists as a plasmid in the bacterium unlike other phages (e.g. the lambda phage) that integrate into the ...

, a bacterial virus *

SARS-CoV-2 Gamma variant The Gamma variant (P.1) was one of the variants of SARS-CoV-2, the virus that causes COVID-19. This variant of SARS-CoV-2 has been named lineage P.1 and has 17 amino acid substitutions, ten of which in its spike protein, including these three ...

, 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

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, NJ, USA * Alsace-Lorraine P 1, a German steam locomotives class * LNER Class P1, a 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''