Cen or CEN may refer to:
The Central Intelligence Agency (CIA) is a civilian foreign intelligence service of the United States federal government, tasked with gathering, processing and analyzing national security information from around the world, primarily through the use of human intelligence (HUMINT).
A central processing unit (CPU) is the electronic circuitry within a computer that carries out the instructions of a computer program by performing the basic arithmetic, logical, control and input/output (I/O) operations specified by the instructions.
Central America (Spanish: "América Central" or "Centroamérica") is the southernmost, isthmian portion of the North American continent, which connects with South America on the southeast.
The Central African Republic (CAR; Sango: Ködörösêse tî Bêafrîka; French: République centrafricaine pronounced: [ʁepyblik sɑ̃tʁafʁikɛn], or Centrafrique [sɑ̃tʀafʁik]) is a landlocked country in Central Africa.
A census is the procedure of systematically acquiring and recording information about the members of a given population.
The Centers for Disease Control and Prevention (CDC) is a United States federal agency under the Department of Health and Human Services, headquartered near Atlanta, Georgia.
The Centurion, introduced in 1945, was the primary British main battle tank of the post-Second World War period.
Central Europe lies between Eastern Europe and Western Europe. The concept of Central Europe is based on a common historical, social and cultural identity.
Central Asia or Middle Asia is the core region of the Asian continent and stretches from the Caspian Sea in the west to China in the east and from Afghanistan in the south to Russia in the north.