Winifred May Copperwheat (10 October 1905 – 23 February 1976) was an English classical viola player and teacher. She studied under English violist Lionel Tertis at the Royal Academy of Music. Tertis later said after one of her recitals, that she had "played like an angel". As soloist, she gave the premiere performances of several works, including: She played in several chamber music combinations; including the Zorian String Quartet, of which she was a founding member. She participated in several premiere performances and recordings by the Zorian Quartet.