Gerardo Iasilli was an American composer of Italian descent. He lived in New York and composed mostly brass music including a number of marches. He was a virtuoso saxophonist and conducted the Orchestrina Italiana, an Italian orchestra, as well as orchestras such as the New York Philharmonic and the Philadelphia Orchestras. Iasilli also worked as a musical teacher and arranger and transposed many works for wind instruments, particularly saxophone. His marches are still played by military bands with some being available as historical records as well as recently released on CD.