St Michael's Prep School is a coeducational preparatory school in Otford, located in a 100-acre (400,000 m2) site in the North Downs, Kent, England.

St Michael's was founded at Hatcham in 1872 by the Reverend Arthur Tooth as a school and home for the sons of the clergy, naval and military officers as well as professionals who had suffered bereavement or fallen on hard times.

In 2005, actor John Hurt stated in an interview with the Independent on Sunday that when he was a pupil at the school he was abused by Donald Cormack, then Senior Master of the school; he later became Head Teacher until his retirement in 1981.

[1] Hurt said that the experience affected him "hugely".

According to the interviewer, he and Hurt had a mutual friend who had earlier made the same allegations to him.