The Lenox Quartet were an American string quartet.

The Lenox Quartet (sometimes confusingly listed as The Lenox String Quartet which is also another ensemble from the 1920s led by Sandor Harmati) began in the early 1960s. Their solo albums and promotional material and newspaper ads normally lists them as The Lenox Quartet

They originally formed from members of the Pittsburg Symphony Orchestra.

The original line up was: Peter Marsh (first violin), Theodora Mantz (second violin), Paul Hersh (viola), Donald McCall (violoncello).

In the mid 1960s they were artists in residence at Grinnell College Iowa.

Delmar Pettys who had played for the previous three years with the Hudson Valley Philharmonic Orchestra joined in 1965

In 1972 they were artists in residence at University of New York at Binghamton