Mark Ware Isham (born September 7, 1951) is an American musician and film composer. A trumpeter and synthesizer player, Isham works in a variety of genres, including jazz and electronic. He is also a film composer, having worked on numerous films and television series, including The Hitcher, Point Break, A River Runs Through It, Of Mice and Men, Warrior, Nell, Blade, Crash, The Lucky One and Once Upon a Time.
Isham acted as well in Made in Heaven by Alan Rudolph (1987) and directed The Cowboy and the Ballerina in 1998.