Sir James Enrique Carreras KCVO MBE (30 January 1909 – 9 June 1990) was a British film producer and executive who, together with William Hinds, founded the British company Hammer Film Productions. His career spanned nearly 45 years, in multiple facets of the entertainment industry until retiring in 1972. From 1949 to 1980, he was chairman of Hammer Film Productions. He oversaw the growth of the privately owned firm into a successful film company.