A50
- A-series light bulb
- A5 (disambiguation)
- A50 autostrada (Poland)
- A50 highway (Spain)
- A50 motorway (France)
- A50 motorway (Netherlands)
- A50 road (England)
- A50 road (Northern Ireland)
- A500 (disambiguation)
- Aerozine 50
- Article 50 of the Treaty on European Union
- Austin A50
- Beriev A-50
- FTSE China A50 Index
- Fiat A.50
- JP-7
- Junkers A50
- KAI T-50 Golden Eagle
- List of highways numbered 50
- Quebec Autoroute 50
- Queen's Pawn Game
- Samsung Galaxy A50
- United Kingdom invocation of Article 50 of the Treaty on European Union