Musiq'3 is a Belgian public-service radio station operated by RTBF. Its output is centred on classical music. The current director is Bernard Meillat.
The channel first went on air – as the Troisième Programme of the then existing RTB (Radio-télévision belge, RTB) – on 1 October 1961. Later known as Musique 3, the channel's present branding, Musiq'3, was adopted in March 2004 as part of the overall restructuring of RTBF's radio services which took place in that year.