ATT
The abbreviation ATT stands for:
- AT&T , a North American telecommunications company
- Admiralty Tide Tables , the United Kingdom Hydrographic Office's tide tables
- ATT R&D , a South Korean electric vehicle manufacturer
- Amadou Toumani Touré , the former President of Mali
- The Arms Trade Treaty , an international arms trade treaty
- the working group drinking water reservoirs
Att , also At , denoted:
- the subdivision of the Kip currency of Laos