ABS is a TLA (acronym) for:

• Antilock braking system
• Acrylonitrile butadiene styrene, a plastic
• Australian Bureau of Statistics, Australia's official statistical organization
• American Bureau of Shipping
• American Bible Society
• Anchor Bible Series
• Asset Backed Security
• Automatic Beam System - automated railways & monorails
• Albino Black Sheep - website

ABS is also the airport code for the airport in Abu Simbel, Egypt

Abs can mean:

• a slang abbreviation for abdominal muscles, abdominals
• a member of the former UK boy band 5ive