The rectoprostatic fascia (Denonvilliers' fascia) is a membranous partition at the lowest part of the rectovesical pouch.

It separates the prostate and urinary bladder from the rectum.

[1] It consists of a single fibromuscular structure with several layers that are fused together and covering the seminal vesicles.

[2] The structure corresponds to the rectovaginal fascia in the female.

The rectoprostatic fascia also inhibits the posterior spread of prostatic adenocarcinoma; therefore invasion of the rectum is less common than is invasion of other contiguous structures.