12E may refer to:
Places edit
- Road 12E, see List of highways numbered 12E
- Tram 12e, a tramline in Lison; see Trams in Lisbon
- 12e arrondissement (disambiguation)
Transportation edit
- Hiller 12E, a helicopter
- Lorraine 12E Courlis, an aero engine
- South African Class 12E, an electric locomotive