RTÉ Vanbrugh Quartet, also known as the RTÉ String Quartet, (Gregory Ellis, Keith Pascoe - violins; Simon Aspell - viola; Christopher Marwood - cello) is the resident string quartet to Raidió Teilifís Éireann, Ireland's national broadcasting service, and Artists in residence to University College Cork and founders of the internationally acclaimed West Cork Chamber Music Festival. It is part of RTÉ Performing Groups.

The RTÉ Quartet was founded in 1985 and won the London International String Quartet Competition in 1988. It is one of Europe's most successful quartets, internationally recognised for its beauty of sound, clarity of texture and integrity of interpretation within an unusually wide and varied range of repertoire.