Diab is a surname and given name of Muslim origin.
Diab may also refer to: Diab, Togo, a village in Togo Dataindustrier AB, or DIAB, a Swedish computer firm
See also Ain Diab, a commune located at the Corniche of Casablanca, Morocco Ain-Diab Circuit, was a Formula One road circuit built in 1957, south west of Ain-Diab in Morocco