* A101 road (England) or Rotherhithe Tunnel, road tunnel crossing beneath the River Thames in East London
* A101 road (Russia), road from Moscow to Belarus through Roslavl
* A-101 (SA-6), the first Saturn rocket launch to carry a Boilerplate Apollo spacecraft in 1964
* Aero A.101, a 1930s Czechoslovakian biplane light bomber and reconnaissance aircraft
* Agusta A.101, a 1964 Italian large prototype transport helicopter