| BACA | Bank Austria Creditanstalt | 奥地利信贷银行 |
| BACA | Baltic Air Charter Association (UK) | 波罗的海包机协会(英国) |
| BACA | British Association of Clinical Anatomists | 英国临床解剖学家协会 |
| BACA | Bikers Against Child Abuse | 骑自行车反对虐待儿童 |
| BACA | Bay Area Christian Academy (Sandusky, OH and La Porte, TX) | 湾区基督教学院(俄亥俄州桑杜斯基和德克萨斯州拉波特) |
| BACA | Bay Area Cricket Alliance (California) | 湾区板球联盟(加利福尼亚州) |
| BACA | Besluit Aanwijzing Chemische Afvalstoffen (Dutch: decree on chemical waste material; now BAGA) | Besluit Aanwijzing Chemische Afvalstoffen(荷兰语:化学废料法令;现为BAGA) |