Dark River (Spanish: Las aguas bajan turbias) is a 1952 Argentine drama film directed by Hugo del Carril, starring del Carril, Adriana Benetti and Raúl del Valle. It is based on a novel by Alfredo Varela. The storyline is about exploitation of peons, and the film has a populist message that ties in with the director's sympathy for Peronism. The film won the Silver Condor Award for Best Film.

It was selected as the sixth greatest Argentine film of all time in a poll conducted by the Museo del Cine Pablo Ducrós Hicken in 1977, while it ranked 4th in the 1984 edition and 3rd in the 2000 edition. In a new version of the survey organized in 2022 by the specialized magazines La vida util, Taipei and La tierra quema, presented at the Mar del Plata International Film Festival, the film reached the 14 position.