Mex
- Boyd Martin Theatre
- Byron Johnson (baseball)
- List of airline codes (M)
- MEX (windowing system)
- MEX file
- Maju Expressway
- Mars Express
- Metropolexpress
- Mex (mathematics)
- Mex Urtizberea
- Mex, Valais
- Mex, Vaud
- Mex-Mex
- Mexborough railway station
- Mexico
- Mexico (disambiguation)
- Mexico City
- Mexico City International Airport
- Monohalomethane
- State of Mexico
- Tex-Mex (disambiguation)