Jan Harbeck (born 13 April 1975 in Aarhus, Denmark) is a Danish jazz musician (saxophones, flaute, clarinet) and composer.

Besides two ensembles of his own, Jan Harbeck Quartet and Live Jive Jungle, he performs with a series of other orchestras.

In 2006 he was awarded the Walter Klæbel Prize, in 2009 a Danish Grammy for Best album of the year, and in 2011 the prestigious Bent Jædig Prize.

With his own self titled quartet he released the album In the Still of the Night (2008), receiving a grammy at the Danish Music Awards.

In 2014 they released thetheir third album Variations in Blue with Walter Smith III.