ALX may refer to:

• Embraer EMB 314 Super Tucano, light attack aircraft
• Hewa Bora Airways, Congo (ICAO code)
• Thomas C. Russell Field, in Alabama, United States (IATA code)
• Alexandria railway station, Scotland (National Rail code)
• Union Station (Alexandria, Virginia) (Amtrak Code)
• File name extension (".ALX") for various computer file types:
  • ActiveX Layout file
  • BlackBerry Application Loader File

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