Grace Bernadette Griffith (née Sisson; October 30, 1956 – June 5, 2021) was a folk and Celtic singer based in Washington, D.C. She has been honored with multiple Wammie awards by the Washington Area Music Association. In 1998, she was diagnosed with Parkinson's disease. Griffith died at the age of 64 following complications from Parkinson's disease on June 5, 2021.