The six string quartets, K. 168–173, were composed by Wolfgang Amadeus Mozart in late 1773 in Vienna. These are popularly known as the Viennese Quartets. Mozart may have hoped to have them published at the time, but they were only published posthumously by Johann André in 1801 as Mozart's Op. 94.

Date of composition 1773 in Vienna, Austria
Type String Quartet
Tonality E-flat Major
Catalogue KV 171
Instruments Viola
Cello
2x Violin
Autotranslations beta Wolfgang Amadeus Mozart: Quatuor à cordes n°11 en mi bémol majeur, KV 171 "Viennese Quartet"
Wolfgang Amadeus Mozart: Quartetto d'archi n. 11 in mi bemolle maggiore, KV 171 "Viennese Quartet"
Wolfgang Amadeus Mozart: Streichquartett Nr. 11 Es-dur, KV 171 "Viennese Quartet"