William Olaf Clibbett (7 December 1908 – 26 September 1967) was an international motorcycle speedway rider who rode in the early days of speedway in the United Kingdom.

[1][2] Clibbett rode for Harringay Canaries during the 1930 Speedway Southern League and continued to ride for them the following season.

[4] He remained with Plymouth for three years before riding for Hackney Wick Wolves from 1935 to 1937 and Bristol Bulldogs from 1938 to 1939.

[5] At retirement he had earned 1 international cap for the England national speedway team.

[1] Clibbett is listed as number 8 of 50 in the 1930s Player's cigarette card collection.