Posted in Government & Military, Health & Medicine, Legal, Organizations, Pop Culture, Science DOU stands for Diário Oficial da União (Brazilian official press) DOU stands for Definitive Observation Unit (healthcare) DOU stands for Direct Observation Unit (hospital) DOU stands for Degree of Unsaturation (organic chemistry) DOU stands for Direction des Oeuvres Universitaires (French: Management of Academic Works; Algeria) DOU stands for Documents Of Understanding