Sir Felix Edward Aylmer Jones (21 February 1889 – 2 September 1979) was an English stage actor who also appeared in the cinema and on television.

He acted with Sir Laurence Olivier in Shakespearean films, appearing as Polonius in Hamlet (1948), and often played wise old men, such as Merlin in Knights of the Round Table (1953).

He played the Archbishop of Canterbury in the film adaptation of Becket (1964), with Richard Burton and Peter O'Toole and gave elocution lessons to the young Audrey Hepburn.

Indeed, as dramatist and barrister John Mortimer noted, the mannerisms Aylmer brought to bear in his roles came to be imitated in real life by judges on the bench.

At the age of 80 Felix Aylmer played a villain in an episode of Randall and Hopkirk (Deceased) entitled "It's Supposed to be Thicker than Water".