Janine Jansen (born 7 January 1978 in Soest in the Netherlands) is a violinist and violist. She began to study the violin at age 6. Her father and both her brothers are also musicians. Her mother is a classical singer and is a sister of the bass Peter Kooy. Jansen studied with Coosje Wijzenbeek, Philippe Hirschhorn, and Boris Belkin. She is married to Swedish conductor Daniel Blendulf.