| BS | Backscattering Spectroscopy | - | Computer Acronyms(common) |
| BS | Breathing Sphere (approxn. In Mol.-scattering Calcns.) | - | Computer Acronyms(common) |
| BS | Bowel Sounds | - | Medical(slang) |
| BS | Block Specification | - | Organizations |
| BS | Big Smile | - | ISO Country Codes |
| BS | Bullsh*t | - | ISO Country Codes |
| BS | Brain Strain | - | ISO Country Codes |
| BS | Bosnian Language (ISO 639-1 Code) | - | Astronomy |
| BS | The Bahamas (ISO 3166 Digram) - Bassas Da India (FIPS 10-4 Territory Code) - Bachelor Of Science Degree - British Subject - Bullshit | - | Astronomy |
| BS | British standard
| - | Human Genome |
