Katherine "KC" Groves (born March 14, 1971) is an American mandolin player and singer specializing in old-time music and bluegrass. She grew up in Dearborn, Michigan and lives now in Lyons, Colorado. Coming from a musical family, her father is a singer and a country yodeler, she had piano lessons at the age of six, though she hated them.
In the early 1990s she began playing guitar, writing songs, and learning mandolin. Groves established herself in the Ann Arbor / Detroit alternative music scene. In 1999, she released her first CD, Can You Hear It, produced by Charles Sawtelle, and won the Detroit Music Award for Best Bluegrass Artist / Group.
Together with Jo Serrapere she founded the old-time music band Uncle Earl.
Her second solo CD, Something Familiar was released in 2004.