| Acronym | Definition |
|---|
| CALB | Calbindin |
| CALB | Candida Antarctica Lipase B (organic chemistry) |
| CALB | Communauté d'Agglomération du Lac du Bourget (French: Agglomeration Community of Lac du Bourget; Lac du Bourget, France) |
| CALB | Communication-Aware Load Balancing (computation) |
| CALB | Calcium-Dependent Lipid Binding |
| CALB | Computer-Aided Line Balancing (est. 1969; Illinois Institute of Technology) |
| CALB | Citizens Against Legal Blackmail (California) |
| CALB | Club Athlétique l'Hay les Roses Badminton (French: L'Hay les Roses Badminton Athletic Club; L'Hay les Roses, France) |