William van der Sloot is a heralded violinist and teacher whose students have earned acclaim throughout the world. A native of Alberta, Canada, he is a graduate of the University of Calgary and continued his studies at the Eastman School of Music. He has toured extensively across Europe and North America. and is a former member of the Villa Marteau Quintet.

William Van der Sloot is a frequent judge of international competitions, including the Wieniawski International Violin Competition, the Brahms International Chamber Music Competition, the Stradivarius International Violin Competition, the Cooper Competition and the Chengdu International Violin Competition. His students and former students have earned top prizes in the National Music Festival, the Canadian Music Competition, the Menuhin International Violin Competition, the Stradivarius International Violin Competition, the Queen Elizabeth Competition, and the Tchaikovsky Competition, among numerous others. Many of his former students hold positions in major orchestras around the world.

In 2015, William van der Sloot was named an honorary fellow of the Royal Conservatory of Music for his contributions to music education in Canada and abroad. He is a regular guest at Orford Music, Morningside Music Bridge, Valhalla Summer School of Music, and Meadowmount during the summer.

William van der Sloot holds teaching appointments at Carnegie Mellon University in Pittsburgh, Oberlin College and Conservatory, and Mount Royal University in Calgary.