| Acronym | Definition |
|---|
| DOU➣Diário Oficial da União (Brazilian official press) |
| DOU➣Definitive Observation Unit (healthcare) |
| DOU➣Direct Observation Unit (hospital) |
| DOU➣Degree of Unsaturation (organic chemistry) |
| DOU➣Direction des Oeuvres Universitaires (French: Management of Academic Works; Algeria) |
| DOU➣Documents Of Understanding |
| DOU➣Day of Use |
| DOU➣Demons of the Underworld (gaming clan) |
| DOU➣Data Object Unprocessed |