SDG can refer to:
- Satsvarupa dasa Goswami
- SDG Group, a management consulting firm specialized in Business Intelligence and Performances Management
- Secoisolariciresinol diglucoside, an anti-oxidant phytochemical present in flax, sunflower, sesame, and pumpkin seeds
- Serb Volunteer Guard
- Single Display Groupware, solution for large multi-touch screens.
- Soli Deo gloria, a Latin phrase meaning "Glory to God alone", which is one of the five solas
- Soli Deo Gloria (record label), British record label
- Stormont, Dundas and Glengarry United Counties, Ontario
- Sudanese pound
- Sum Dum Goy, a famous Chinese Restaurant in Lower Manhattan
- Synthetic differential geometry
- The Spencer Davis Group, a 1960s British musical group