Jimmy Duncan (née James Ollie Duncan, Jr.; 25 June 1927 in Houston – 9 November 2011 in Houston) was an American songwriter, singer, composer, author, arranger and producer, best known for his 1957 song "My Special Angel," a No.1 country/western hit for Bobby Helms. Duncan also co-wrote "String Along", which charted in 1960 for Fabian and in 1963 for Ricky Nelson.