Kathleen Alice Mattea (born June 21, 1959) is an American country music and bluegrass singer.
She sang "One Light One Sun" on the 2001 tribute album Country Goes Raffi. Kathy met Raffi at the Grammies during the late 1980s and immediately liked his vibe. She didn't see him again for about ten years, when they were together on a TV show, and he casually mentioned the project to her.