Lucy Wainwright Roche (born December 16, 1981, Greenwich Village, New York City, New York, USA) is an American singer-songwriter, and the daughter of musicians Loudon Wainwright III and Suzzy Roche. Half-sister of Rufus Wainwright and Martha Wainwright. Granddaughter of Loudon Wainwright II, niece of Maggie Roche, Terre Roche, Teddy Wainwright and Sloan Wainwright, and cousin of Felix McTeigue.