Mike Marshall (born Michael James Marshall, July 17, 1957 in New Castle, Pennsylvania is an American mandolin player and multi-instrumentalist who grew up in central Florida and now lives in Oakland, California. Marshall has been a part of New Acoustic Music since the early 1980s. He has performed and recorded with many musicians in a variety of styles, including bluegrass, classical, jazz and Brazilian music. In addition to several instruments within the mandolin family, Marshall also plays the guitar and violin.

Marshall has recorded and toured with other contemporary acoustic musicians such as David Grisman, Tony Rice, Mark O'Connor, Stéphane Grappelli, Darol Anger, Barbara Higbie, and Jerry Douglas. His two recordings on the Sony Classical label: Uncommon Ritual with banjo innovator Béla Fleck and bassist Edgar Meyer; and Short Trip Home with violinist Joshua Bell, mandolinist Sam Bush and Meyer were both on the Billboard Classical Music charts.