Cedric Austen Bardell Smith (5 February 1917 – 10 January 2002) was a British statistician and geneticist.
He was the younger son of John Bardell Smith (1876–1950), a mechanical engineer, and Ada (née Horrocks; 1876–1969).
In 1935, although having failed his Higher School Certificate, he was awarded an exhibition to Trinity College, Cambridge.
Together they tackled a number of problems in the mathematical field of combinatorics and devised an imaginary mathematician, Blanche Descartes, under which name to publish their work.
He remained at UCL for the rest of his career, becoming successively Lecturer and Reader, before appointment as Weldon Professor of Biometry in 1964.
B. S. Haldane, who introduced him to problems of linkage in human genetics in which field he was able to bring his skills as a statistician to bear.