Mark Egan
 Mark Egan (Born 1951 in Brockton Massachusetts) is an American jazz bass guitarist and trumpeter arguably best known for his membership in the Pat Metheny Group from 1977 to 1980 and the Gil Evans Orchestra. He is co-founder of the jazz fusion band Elements.Egan has maintained a solo career with three platinum and three gold albums to his credit and has served as bandleader of his own ensembles to positive reviews.