BYS
| Acronym | Definition |
|---|---|
| BYS | By Your Side |
| BYS | Be Yourself (cosmetics company; Australia) |
| BYS | Bhakti Yoga Society (various locations) |
| BYS | Before You Send |
| BYS | Boston Youth Symphony (Massachusetts) |
| BYS | Backyard Special (automotive) |
| BYS | Bless Your Soul |
| BYS | Between Your Sheets (book website) |
| BYS | Barbados Youth Service (est. 1991) |
| BYS | Build Your Scion (Toyota) |