- DAFF stands for Department of Agriculture, Fisheries and Forestry (various nations)
- DAFF stands for Department of Agriculture, Fisheries and Food (Republic of Ireland)
- DAFF stands for Dansk Amerikansk Fodbold Forbund (Denmark)
- DAFF stands for Dissolved Air Flotation Filtration (process)
- DAFF stands for Danish Adventure Film Festival
- DAFF stands for Decision-Aided Feedforward
- DAFF stands for Deauville American Film Festival (Deauville, France)
DAFF