Jens Winther was a Danish jazz trumpeter, composer, arranger and bandleader. He composed for and played in a long line of European big bands and other orchestras. His work includes compositions for symphony orchestras, chamber ensembles and choirs. As a bandleader, he was noted on the international Jazz scene with his JW European Quartet, particularly since 2007. In 2008, he founded the fusion band JW Electrazz. From 2009, he was based in Berlin, Germany.