ABCS
ABCS may mean:
- Army Battle Command System
- Aeromedical Biological Containment System
- ABCS Tournament, an international association football competition
- ABCs (song), 2008 single by K'naan featuring Chubb Rock
- ABCS, callsign for the Australian Broadcasting Corporation's TV station in Ceduna, South Australia
- The ABC Song, also known as "The ABCs"