SDU

SDU is a three-letter abbreviation that may refer to:Special Detective Unit, Irelands police special branch.Santos Dumont Regional Airport, a small busy airport in Rio de Janeiro, Brazil.Suleyman Demirel University, University located in Almaty, Kazakhstan.Service Data Unit, a telecommunications term related to the layered protocol concept.Special Duties Unit, a paramilitary police unit of the Hong Kong Police.Social Development Unit, a matchmaking agency in Singapore.University of Southern Denmark, danish: Syddansk Universitet (SDU).Southern Diving Unit, a bomb disposal diving unit in the Royal Navy (UK).Social Democratic Union (Serbia), a political party in Serbia.Social Democratic Union (BiH), a political party in Bosnia and Herzegovina.Special Delivery Unit, a small administrative unit of Thai Gov. such as Public Relation Department.Sword Dance Union, an organisation which represents the interests of the Rapper Sword and Long Sword dancing traditions.
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In layered systems, a set of data that is sent by a user of the services of a given layer, and is transmitted to a peer service user semantically unchanged.

Airport Name: Santos Dumont Airport
Airport Location: Rio de Janeiro, Brazil
IATA Code: SDU
ICAO Code: SBRJ