Arx, ARX, or ArX may refer to:
The arXiv (pronounced "archive") is a repository of electronic preprints, known as e-prints, of scientific papers in the fields of mathematics, physics, astronomy, computer science, quantitative biology, statistics, and quantitative finance, which can be accessed online.
Arx Fatalis is a partially open source first-person role-playing video game for the Xbox and Microsoft Windows, released on November 2002 by Arkane Studios, a video game developer based in Lyon, France.
Arxan Technologies is an American technology company specializing in Application Attack Prevention and Self-Protection solution for IoT, Mobile, and other applications.
ARX (Algorithmic Research Ltd.) is a digital security company headquartered in San Francisco, CA, with offices in the UK, the Netherlands, Australia and Israel.
Arxel Tribe is an international video game and multimedia company, founded by Slovene architects Matjaž Požlep and Diego Zanco in 1991. The company is now known as The Arxel Guild.
ArX is a distributed version control system. ArX began as a fork of GNU arch, and is licensed under the GPL.
Arxan (simplified Chinese: 阿尔山; traditional Chinese: 阿爾山; pinyin: Ā'ěrshān; Mongolian: ᠷᠠᠰᠢᠶᠠᠨ ᠬᠣᠲᠠ Arxaan hôt or Рашаан хот; literally spring or spa) is a county-level city of northeastern Inner Mongolia, People's Republic of China.
ARX was an unreleased Mach-like operating system written in Modula-2+ developed by Acorn Computers Ltd in the Acorn Research Centre (ARC) UK and later Olivetti Research Center and later on Software Technology Laboratory (when Olivetti bought out Acorn) at Palo Alto for their new ARM RISC processors based Archimedes computers range.
Arxan (or A'ershan) Yi'ershi Airport (Chinese: 阿尔山伊尔施机场) (IATA: YIE, ICAO: ZBES) is an airport serving the city of Arxan (A'ershan) in the Hinggan League of Inner Mongolia Autonomous Region, China.