ATTM
| Acronym | Definition |
|---|---|
| ATTM | At This Time |
| ATTM | Awesome to the Max |
| ATTM | Ammonium tetrathiomolybdate |
| ATTM | Associazione Ticinese Truppe Motorizzate (Italian: Association of Ticinese Motorized Troops; Ticino, Switzerland) |
| ATTM | AT&T Mobile |
| ATTM | Arrival Time to Market (software) |
| ATTM | Alt.toys.transformers.moderated (newsgroup) |
| ATTM | American Telephone and Telegraph Microelectronics |