Mark Lockheart (born 31 March 1961) is a British jazz tenor saxophonist who was a member of the Loose Tubes big band during the 1980s.

[1] After the demise of Loose Tubes, Lockheart formed jazz/folk quartet Perfect Houseplants with Huw Warren, Dudley Phillips, and Martin France.

[9] As a septet featuring Sebastian Rochford, Tom Herbert, Liam Noble, Margrit Hasler, James Allsopp, and Finn Peters, Lockheart completed a UK wide tour[10] supported by the Arts Council of England.

In July 2014 Lockheart formed the trio Malija with pianist Liam Noble and bassist Jasper Hoiby as a result of a request from the Rochester Jazz Festival in New York.

Most recently Lockheart has completed a major jazz/orchestral work titled Days On Earth for jazz sextet and 30-piece orchestra, released on Edition Records in January 2019.