Hildegunn Øiseth, born on December 5, 1966 in Kongsvinger, Norway, is a Norwegian jazz musician, specializing in horns. She studied at the Swedish Music Academy and began her career as part of the Bohuslän Big Band from 1990 to 1999, playing on albums by Lars Jansson. After moving to South Africa in 2001, she played with the band Uhambo and performed internationally in Malaysia, Pakistan, and the Middle East. Øiseth released her debut album Hildring in 2009, focusing on the traditional Norwegian bukkehorn. Her subsequent albums include Stillness (2011), which received critical acclaim, and Valencia (2013). She has collaborated with various artists, including Mats Eilertsen, Thomas Strønen, Tommy Kotter, Peter Janson, and Anders Kjellberg. Øiseth is also the bandleader of the Norwegian-Palestinian collective Sharaka and a member of the Trondheim Jazz Orchestra. Her notable works include Never Again (2015) and Suite for Gaia (2023).