DEU

DEU may refer to:

• Deutsche Eislauf-Union, the figure skating governing body in Germany
• Diccionario del español del Uruguay, the Dictionary of Uruguayan Spanish
• Distinctive environmental uniform, the current uniform of the Canadian Forces, adopted in the late 1980s
• Doom Editing Utility, a software utility for the computer game Doom
• The ISO 3166-1 alpha-3 country code for Germany (German Deutschland)
• The ISO 639-2 (T) and ISO 639-3 code for Standard German
• Drug Enforcement Unit, a specialised police unit
• Dokuz Eylül University, a state university located in Izmir, Turkey