Supersister was a Dutch band from The Hague, Netherlands, active during 1970–1974, 2000–2001 and 2010–2011. They played progressive rock ranging from jazz to pop, and although Dutch, they are generally considered to be part of the Canterbury scene due to their playfulness and complicated sound. The most predominant band members were Robert Jan Stips (keyboards, vocals), Sacha van Geest (flute), Ron van Eck (bass) and Marco Vrolijk (drums).