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Frank Christian (born Frank P. Caputo, October 19, 1952 – December 24, 2012) was an American, Greenwich Village-based singer-songwriter and guitarist. His best-known song, "Three Flights Up" was recorded by Nanci Griffith for her Grammy award-winning 1992 release Other Voices, Other Rooms. Christian also had much success as a sideman. He appeared on dozens of albums, backing such performers as Dave Van Ronk, Suzanne Vega, John Gorka, Nanci Griffith, and The Smithereens. He began his guitar studies with the jazz guitarist .