| BUC | Block Up Converter | 块上变频器 |
| BUC | Back Up Computer | 备份计算机 |
| BUC | Brothers Under Christ (Christian fraternity) | 基督下的兄弟会（基督教兄弟会） |
| BUC | Back Up Converter | 备用转换器 |
| BUC | Buchnera | 布切纳（Buchnera） |
| BUC | Billing Unit Code | 计费单位代码 |
| BUC | Bus Unit Controller | 总线单元控制器 |
| BUC | Back Up Controller | 备用控制器 |
| BUC | Backup Concentrator | 备用集中器 |
| BUC | Business Unit Contribution | 业务单位贡献 |
| BUC | Backup Commanding | 备份命令 |
| BUC | Bulk Unitization Charges (shipping) | 散装单位化费用（运输） |
| BUC | Block Up Converter (satellite component) | 块上变频器（卫星组件） |
| BUC | Bunker Contribution | 燃料箱贡献 |
| BUC | Buckhorn California | 加州Buckhorn |
| BUC | Business Unit Controller | 业务部门主管 |
| BUC | Blessed/Uncursed/Cursed (NetHack) | Uncursed祝福诅咒(NetHack) |
| BUC | Chief Builder (Naval Rating) | 总建造师（海军等级） |
| BUC | Buccaneer | 海盗 |
| BUC | Burketown, Queensland, Australia | 澳大利亚昆士兰州伯克敦 |
| BUC | Behaviors Used Creating | 用于创建的行为 |