William Miles Malleson (25 May 1888 – 15 March 1969) was an English actor and dramatist, particularly remembered for his appearances in British comedy films of the 1930s to 1960s.

(Miles' cousin and contemporary, Lucy Malleson, had a long career as a mystery novelist, mostly under the pen name "Anthony Gilbert".

At Cambridge, he created a sensation when it was discovered that he had successfully posed as a politician and given a speech instead of the visitor who had failed to attend a debating society dinner.

The Arts Guild also helped stage plays by George Bernard Shaw, John Galsworthy and Laurence Housman, as well as Malleson's own work.

He is best remembered for his roles as the Sultan in The Thief of Bagdad (1940), the poetically-inclined hangman in Kind Hearts and Coronets (1949), and as Dr. Chasuble in The Importance of Being Earnest (1952).

[9] Failing eyesight led to his being unable to work in his last years, though he did write the subtitles for a filmed version of a Comédie Française production of Le Bourgeois gentilhomme, which was shown at the Academy Cinema in London in 1962[10] and in 1964 recorded 'Indian Summer of an Uncle' and 'Jeeves Takes Charge' with Roger Livesey, Terry-Thomas, Rita Webb, Avril Angers, and Judith Furse for the Caedmon Audio record label.

A memorial service was held at St Martin-in-the-Fields during which Dame Sybil Thorndike and Sir Laurence Olivier gave readings.