Secrets of a Windmill Girl is a 1966 British exploitation film directed by Arnold L. Miller and starring Pauline Collins, April WIlding and Renée Houston.

It recounts the road to ruin of a young woman who becomes involved with the striptease scene after becoming a dancer at the Windmill Theatre in London.

[7] Valerie Mitchell's single "The Windmill Girls", composed by Sidney Gilbert, was used as the theme tune for the film.

Ethically it is as dubious and naive as most; the hygienic, hard-working happiness of the average Windmill girl is one of the film's more tiresome propositions; the direction is non-existent.

Acting is not the film's strong point, undressing is the main concern of the girls, but guest stars Derek Bond, Renée Houston, Howard Marion Crawford and Harry Fowler pull their weight.