Belgium in the Eurovision Song Contest 1973

Belgium was represented by Nicole and Hugo, with the song "Baby, Baby", at the 1973 Eurovision Song Contest, which took place in Luxembourg City on 7 April. "Baby, Baby" was the winner of the Belgian national final for the contest, held at the Amerikaans Theater in Brussels on 25 February. Nicole and Hugo had won the 1971 Belgian preselection with the song "Goeiemorgen, morgen", but days before the contest Nicole had fallen ill and was unable to travel to host city Dublin, so Jacques Raymond and Lily Castel had been drafted in as last-minute replacements.