A50
# A50

A50, A.50 or A-50 may refer to:

## Aviation

* Beriev A-50, a Russian airborne early warning aircraft
* Fiat A.50, a 1928 Italian seven-cylinder, air-cooled radial engine for aircraft
* A-50 Golden Eagle, a light attack variant of the South Korean KAI T-50 Golden Eagle advanced trainer aircraft
* Junkers A50, a German sports plane of 1930s
* A-50, a caesium-containing additive in the fuel JP-7
* Aerozine 50, a type of rocket fuel

## Roads

* A50 highway (Canada), a road in Québec connecting the Outaouais and National Capital region and the Greater Montreal area
* A50 road (England), a road connecting Warrington and Leicester
* A50 motorway (France), a road connecting Marseille and Toulon
* A50 road (Northern Ireland), a road connecting Portadown and Newcastle in Northern Ireland
* A50 motorway (Netherlands), a road connecting Eindhoven and Zwolle
* A50 highway (Spain), a road connecting Salamanca and Ávila
* A50 autostrada (Poland), a planned motorway being part of new Warsaw bypass

## Other uses

* Queen's Pawn Game (Encyclopaedia of Chess Openings code: A50)
* FTSE China A50 Index, an stock exchange index
* Article 50 of the Treaty on European Union
   * United Kingdom invocation of Article 50 of the Treaty on European Union
* Austin A50 a UK medium sized saloon car 1954-57
* Samsung Galaxy A50, smartphone released in 2019
* A-series light bulb of diameter 50 mm
