The Danish participating broadcaster, Danmarks Radio (DR), organised the Dansk Melodi Grand Prix 1979 in order to select its entry for the contest.

The 1979 DMGP is notable for the participation of two of Denmark's three Eurovision winners, Grethe Ingmann and the Olsen Brothers.

Danmarks Radio (DR) held the Dansk Melodi Grand Prix 1979 on 3 February at TV-Byen in Gladsaxe, hosted by Jørgen de Mylius.

The tie was resolved after a revote, which was won by "Disco Tango" performed by Tommy Seebach.

At the close of voting "Disco Tango" had received 76 points, placing Denmark 6th of the 19 entries.