Sun Kil Moon is a folk rock act founded in San Francisco in 2002. It is also known as the main moniker of guitarist and vocalist Mark Kozelek. Originally a continuation of Kozelek’s defunct indie rock band Red House Painters, Sun Kil Moon released Ghosts of the Great Highway in 2003 to widespread critical acclaim and has performed under the moniker ever since.

Kozelek shows a great interest in the sport of boxing which comes up in many of his songs. The group is even named after the Korean lightweight boxer Sung-Kil Moon.