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 See also List of highways numbered 50