DR3 may refer to:
Death receptor 3, a protein DR-3, a highway in the Dominican Republic DR3 register, a debug register of x86 processors DR3 (car), an Italian automobile by DR Motor Company DR3, a Danish online television channel from DR and former television channel Dead Rising 3, a video game for the Xbox One console Danganronpa 3: The End of Hope's Peak High School, an anime series in the Danganronpa franchise Daniel Ricciardo, Formula One driver using racing number 3 DR3 (DR for "Dreieckrechner"), a German flight computer manufactured as of 1943 DR3: Gaia Data Release 3