DA3 may refer to:
DA postcode area (Dartford postcode area), a group of postal codes in England 3/15 DA-3 Wartburg, a BMW car model Davis DA-3, an undeveloped light aircraft Wright R-3350-DA3, an aircraft engine (9944) 1990 DA3, a minor planet (52460) 1995 DA3, a minor planet DA3, a model of Honda Integra DA3, a Eurofighter Typhoon variant DA3, a module code for the Dungeons & Dungeons adventure City of the Gods Dragon Age: Inquisition, a 2014 video game