Mitchell Herbert Ellis (August 4, 1921 – March 28, 2010) was an American jazz guitarist. Perhaps best known for his 1950s membership in the trio of pianist Oscar Peterson, Ellis was also a staple of west-coast studio recording sessions, and was described by critic Scott Yanow as “an excellent bop-based guitarist with a slight country twang to his sound.”

Born in Farmersville, Texas and raised in the suburbs of Dallas, Ellis first heard the electric guitar performed by George Barnes on a radio program. This experience is said to have inspired him to take up the guitar. He became proficient on the instrument by the time he entered North Texas State University. Ellis majored in music, but because they did not yet have a guitar program at that time, he studied the string bass. Unfortunately, due to lack of funds, his college days were short-lived. In 1941, Ellis dropped out of college and toured for six months with a band from the University of Kansas.