Heiða Karine Jóhannesdóttir Mobeck (born 7 May 1987 in Trondheim, Norway) is a Norwegian Jazz musician (tuba and bass guitar), daughter of the artists Kari Elise Mobeck (Lademoen Kunstnerverksteder) and Jóhannes B. Sigurjónsson (NTNU), married 23 June 2011 to the drummer and vibraphonist Hans Hulbækmo, and known for playing in a series of bands and recordings.