Slim Moon (b. Matthew Moon on October 15, 1967 in Missoula, Montana, United States) is the founder of the independent music label, Kill Rock Stars. He also started its sister label, 5 Rue Christine. Slim ran KRS from 1991 to 2006, during which time KRS released albums by dozens of artists including Sleater-Kinney, Elliott Smith, The Decemberists, Miranda July, Bikini Kill, Unwound, Huggy Bear, The Gossip, and Linda Perry. Slim and his wife, who now runs KRS, decided to make 5RC dormant, and in 2007 5RC released its final records for the present time.

Moon is a partner in Shotclock Management, a company started by his wife Portia Sabin in 2004.