DOU or Dou may refer to:
Douglas MacArthur (26 January 1880 – 5 April 1964) was an American five-star general and field marshal of the Philippine Army.
In basketball, a double is the accumulation of a double-digit number total in one of five statistical categories—points, rebounds, assists, steals, and blocked shots—in a game.
A doughnut or donut (both: /ˈdoʊnət/ or /ˈdoʊnʌt/; see spelling differences) is a type of fried dough confectionery or dessert food.
The double bass or simply the bass (and numerous other names) is the largest and lowest-pitched bowed string instrument in the modern symphony orchestra.
The Douglas A-4 Skyhawk is a single seat subsonic carrier-capable attack aircraft developed for the United States Navy and United States Marine Corps in the early 1950s.
The Douglas DC-8 (also known as the McDonnell Douglas DC-8) is a four-engine long-range narrow-body jet airliner built from 1958 to 1972 by the Douglas Aircraft Company.
The modern double-slit experiment is a demonstration that light and matter can display characteristics of both classically defined waves and particles; moreover, it displays the fundamentally probabilistic nature of quantum mechanical phenomena.
Double-entry bookkeeping, in accounting, is a system of bookkeeping so named because every entry to an account requires a corresponding and opposite entry to a different account.
The Douglas A-26 Invader (designated B-26 between 1948 and 1965) is a twin-engined light bomber and ground attack aircraft that was built by Douglas Aircraft Company during World War II which also saw service during several major Cold War conflicts.