Wilhelm Cramer (2 June 1746, Mannheim – 5 October 1799, London) was a famous London violinist and musical conductor of German origin. He was one of a numerous family who were identified with the progress of music during the 18th and 19th centuries. Wilhelm Cramer is the father of the famous Johann Baptist Cramer (24 February 1771 – 16 April 1858) (English musician of German origin).