Mark Lockheart (born Lymington, 1961) is a British jazz tenor saxophonist who came to prominence as a member of the Loose Tubes big band during the 1980s.Following the demise of Loose Tubes, Mark went on to form the co-led eclectic jazz/folk quartet Perfect Houseplants with Huw Warren, Dudley Phillips & Martin France. The band released five albums including two with the early music group The Orlando Consort.