Mitchell Herbert Ellis (August 4, 1921– March 28, 2010 Farmersville, TX)  was an American jazzguitarist. During the 1950s, he was in a trio with pianist Oscar Peterson.

Ellis was proficient on the instrument by the time he entered North Texas State University. He majored in music, but because the university did not have a guitar program, he studied the bass. He dropped out of college and toured for six months with a band from the University of Kansas. From 1943–45 he joined Glen Gray and the Casa Loma Orchestra. After Gray’s band, Ellis joined the Jimmy Dorsey band where he played some of his first recorded solos.

Ellis remained with Dorsey through 1947, traveling and recording extensively, and playing in dance halls and movie palaces. Lou Carter told journalist Robert Dupuis in a 1996 interview, “The Dorsey band had a six-week hole in the schedule. The three of us had played together some with the big band. John Frigo, who had already left the band, knew the owner of the Peter Stuyvesant Hotel in Buffalo. We went in there and stayed six months. And that’s how the group the Soft Winds were born”. Together with Frigo and Lou Carter, Ellis wrote the classic jazz standards “Detour Ahead” and “I Told Ya I Love Ya, Now Get Out“.

The Soft Winds group was fashioned after the Nat King Cole Trio. They stayed together until 1952. Ellis then joined the Oscar Peterson Trio (replacing Barney Kessel) in 1953, forming what Scott Yanow would later on refer to as “one of the most memorable of all the piano, guitar, and bass trios in jazz history”.

Ellis became prominent after performing with the Oscar Peterson Trio from 1953 to 1958, along with pianist Peterson and bassist Ray Brown. He was a somewhat controversial member of the trio, because he was the only white person in the group in a time when racism was still very much widespread.