A Train
- A (New York City Subway service)
- A Division (New York City Subway)
- A Line (Los Angeles Metro)
- A Line (RTD)
- A-Train
- A-Train (JR Kyushu)
- A-Train (Korail)
- A-train (Texas)
- A-train (satellite constellation)
- Aaron Williams (basketball)
- Anthony Kelly (lacrosse)
- Anthony Thomas (American football)
- Anton Volchenkov
- Arlanda Express
- Artis Gilmore
- Green Line A branch
- Hitachi A-train
- Key System
- Line A (disambiguation)
- List of The Boys characters
- MTR Adtranz–CAF EMU
- Matt Bloom
- Mike Alstott
- Take the "A" Train
- Take the "A" Train (Betty Roché album)
- Take the "A" Train (Dexter Gordon album)