William Cope, 1st Baron Cope (18 August 1870 – 15 July 1946), known as Sir William Cope, Bt, between 1928 and 1945, was a Welsh Conservative Party politician, who was also notable as an international rugby union player for Wales.
He was Member of Parliament for Llandaff and Barry from 1918–29, was made a baronet in 1928 and elevated to the peerage as Baron Cope in July 1945.