Francis Grasso (March 25, 1949 – March 20, 2001) was an American disco music disc jockey from New York City, best known for inventing the technique of beatmatching (sometimes referred to as mixing or blending) which is the foundation of the modern club DJ's technique. Though he died in March 2001, the skills and techniques he pioneered remain the foundation of what is heard in a modern nightclub. Francis was interviewed in Josell Ramos' 2003 feature-length documentary Maestro.