| Acronym | Definition |
|---|
| ATOM | Alpha Teens on Machines (French animated television series) |
| ATOM | All Types of Mortgages (est. 1991; UK) |
| ATOM | Any Transport Over MPLS |
| ATOM | Australian Teachers of Media |
| ATOM | Assistant Technical Operations Manager |
| ATOM | Managed Objects for Atm Management |
| ATOM | Advanced Trauma Operative Management |
| ATOM | August Twenty One Movement |
| ATOM | Aluminum Tree and Ornament Museum |
| ATOM | Automatic Telescope for Optical Monitoring |
| ATOM | ATM Output-Buffer Modular (NEC) |
| ATOM | Advanced Tool for Option Modeling |
| ATOM | Analysis Tools for Object Modification |
| ATOM | Active Teens of the Museum (Denver Museum of Nature and Science) |
| ATOM | Assistant Technical Operations Manager (BBC) |
| ATOM | Automated Operation Manual |
| ATOM | Adventure Tours on Motorcycles |