Cloaca is a 2003 Dutch film, directed by Willem van de Sande Bakhuyzen. It is a film adaptation of the 2002 theatre play Cloaca written by Maria Goos, who wrote the scenario for the film as well. The leading roles celebrate men in their 40s who were formerly student friends but since then have let their relationship go stale. They are played by: Goos's husband Peter Blok (Tom), Pierre Bokma (Pieter), Gijs Scholten van Aschat (Joep), and Jaap Spijkers (Maarten). Female roles were played by Caro Lenssen (Laura), Elsie de Brauw (Conny), and Marleen Stolz (Russian prostitute). Eric Schneider acted in a supporting role as Brest, Pieter's boss's boss.

Blok, Bokma, Goos, Scholten van Aschat, and Van de Sande Bakhuyzen know each other from the Toneelacademie Maastricht.

The film was conceived as a made-for-TV film (it was co-financed by the AVRO) but later got a cinema release. It won the public prize for Dutch film at a festival in 2003, and was released on DVD in 2005.