Sanulrim (Hangul: 산울림), also spelled Sanullim, was a South Korean rock band that debuted in 1977.

The band, formed when the three were university students, was initially called 무이 (Mui) and was never meant to be professional.

Mui was initially nominated to win with their song, "문좀 열어줘 (Please Open the Door)" but was not qualified because Kim Chang-wan had already graduated from the university.

On January 29, 2008, drummer Kim Chang-ik was killed in a traffic accident while driving a forklift during heavy snow in Vancouver, British Columbia, Canada.

He was one of the antagonists in the hit South Korean medical drama White Tower, and had a supporting role in the romantic comedy Coffee Prince.