The 1976 Shellsport International Series was a Formula Libre motor racing championship held in the United Kingdom, the series ran F1, F2, F5000 and Formula Atlantic cars in the same race.[1] The first Shellsport International Series was contested over 13 rounds. The season started on 21 March and ended on 7 November. The Drivers' Championship was won by Englishman David Purley.[2]