DDAB
| Acronym | Definition |
|---|---|
| DDAB | Dimethyldioctadecylammonium Bromide |
| DDAB | Didodecyl-Dimethyl Ammonium Bromide |
| DDAB | Drug-Dependent Antibody |
| DDAB | Developmental Disabilities Advisory Board (Washington) |
| DDAB | Dada Data Alpha and Beta (advertising; Steve Hayden) |
| DDAB | Dimethyl Dodecyl Amido Betaine (skin care product) |