Symphony Number One (SNO) is a chamber orchestra primarily devoted to new music based in Baltimore, Maryland. SNO performs each year in musical venues in Mount Vernon, Baltimore, at Morgan State University, and across the city. Jordan Randall Smith is Symphony Number One's founder and current music director.

Jordan Randall Smith is an American conductor, arts entrepreneur, and percussionist. He is the music director of Symphony Number One and conductor of the Hopkins Concert Orchestra at Johns Hopkins University. He was also a Visiting assistant professor of Music and Director of Orchestra at Susquehanna University.