Mark Feltham (born 20 October 1955, Bermondsey, Southwark, London) is an English musician, best known for playing harmonica with several artists including Oasis and Talk Talk. Feltham is a long-term member of the British blues rock band Nine Below Zero, and Rory Gallagher's band; and is often used as a session musician.
In an interview on the South Bank Show broadcast in 1981, Nine Below Zero guitarist and singer Dennis Greaves noted that Feltham's 'nan' had played the harmonica and his dad bought him his first instrument.