Ruby Jane Smith (born November 17, 1994) is an American fiddle player, singer, and songwriter in the traditional bluegrass and Americana music genres. The youngest fiddler invited to play the Grand Ole Opry, Smith has toured and recorded with Asleep at the Wheel’s Ray Benson, Drake Bell, and Willie Nelson, and has performed on Austin City Limits. She was also an official performer at the 2010 and 2011 Austin City Limits Music Festival.