Martha Strongin Katz is a violist and member of the faculty of the New England Conservatory of Music (NEC) in Boston, Massachusetts, where she teaches viola and chamber music. She was a founding member of the Cleveland Quartet, along with her former husband, Paul Katz (cellist), and Peter Salaff and Donald Weilerstein (violinists). From 1969 until her departure from the group in 1980, she performed more than 1,000 concerts, including appearances at the White House, the Grammy Awards, on the NBC Today Show, and in the major concert halls of five continents.