• Common dab, a kind of flatfish
• Dabbing (motorcycling), touching the ground or other objects with feet or hands while motorcycling or bicycling
• Dab (beer), Dortmunder Actien Brauerei, a German lager
• Dąb Coat of Arms, a Polish coat of arms
• dabs.com, a retailer in the UK
• Dab, a term in the sport of bouldering
• Dab (cat), a character in Robin Jarvis's Deptford Histories

Places:

• Dąb (German: Domb), a town in Poland
• Dab, Pakistan

DAB may refer to:

• Dave & Buster's, a chain of restaurants in the United States
• Dansk Almennyttigt Boligselskab a Danish non-profit housing association
• Danish Automobile Building in Danish (Dansk Automobil Byggeri A/S)
• Daytona Beach International Airport (IATA airport code: DAB) in Florida, United States
• Defense Acquisition Board, a group that reviews proposed purchases by the United States Department of Defense
• Democratic Alliance for the Betterment of Hong Kong, a political party in the Hong Kong Special Administrative Region of the People's Republic of China
• Digital Audio Broadcasting, a form of radio transmission
• Dibbuns Against Bedtime, an online Redwall fan community

Chemicals:

• 3,3'-Diaminobenzidine, commonly used in immunohistochemical staining
• 3,3'-Diaminobenzidine tetrahydrochloride, the neutralized water-soluble form of the above
• Methyl yellow (or p-dimethylaminoazobenzene), a pH indicator