| Abbreviation | Definition |
|---|---|
| BSPP | Burma Socialist Programme Party |
| BSSR | Byelorussian Soviet Socialist Republic |
| BTRP | Bloomingdale Township Republican Party |
| BTS | Big Time Socialists |
| BTW | Build The World |
| BUCD | Boston University College Democrats |
| BUDP | Bhutan United Democratic Party |
| BUDP | British Ulster Dominion Party |
| BUFI | Botom - Up Flow of Information |
| BV | Basic Votes |
| BW | Brain Wash |
| BWI | Bretton Woods Institution |
| BYR | Búsqueda Y Rescate |
| BYV | Black Youth Vote |
| C | Commons (designating bills introduced in the House of Commons) |
| C | Compromise |
| C | Conservative (party member) |
| C | Constituent |
| C | Controversy |
| C4L | Campaign for Liberty |