UCD can refer to:

Education

University College Dublin University College Dublin (), commonly referred to as UCD, is a public research university in Dublin, Ireland, and a collegiate university, member institution of the National University of Ireland. With 38,417 students, it is Ireland's largest ...

, Irish university **

University College Dublin A.F.C. University College Dublin Association Football Club, known commonly as UCD, is the football team of University College Dublin. They play in the League of Ireland First Division. Founded in 1895, the club was elected to the League of Ireland in 19 ...

, the university's association football club **

University College Dublin RFC University College Dublin Rugby Football Club (also referred as UCD) is a rugby union club based in Dublin, Ireland, and plays in Division 1A of the All-Ireland League. They play their home games at UCD Bowl. The club was founded in 1910 and t ...

, the university's rugby union club **

UCD GAA UCD GAA or University College Dublin Gaelic Athletic Association club is a Dublin based Gaelic games club in University College Dublin. The UCD hurling club was founded in 1900 and boasted the mottos "Ad Astra" and "Cothrom Féinne". The first ...

, the university Gaelic games club *

University of California, Davis The University of California, Davis (UC Davis, UCD, or Davis) is a Public university, public Land-grant university, land-grant research university in Davis, California, United States. It is the northernmost of the ten campuses of the University ...

Science and technology

User-centered design User-centered design (UCD) or user-driven development (UDD) is a framework of processes in which usability goals, user characteristics, environment, tasks and workflow of a product, service or brand are given extensive attention at each stag ...

* Use case diagram *

Urine collection device A urine collection device or UCD is a device that allows the collection of urine for analysis (as in medicine, medical or forensics, forensic urinalysis) or for purposes of simple elimination (as in vehicles engaged in long voyages and not equip ...

Ultra compact dwarf A dwarf galaxy is a small galaxy composed of about 1000 up to several billion stars, as compared to the Milky Way's 200–400 billion stars. The Large Magellanic Cloud, which closely orbits the Milky Way and contains over 30 billion stars, is so ...

galaxy *

Unicode Character Database The Unicode Standard assigns various properties to each Unicode character and code point. The properties can be used to handle characters (code points) in processes, like in line-breaking, script direction right-to-left or applying controls. Som ...

Other

Unión Cívica Democrática Unión Cívica Democrática (UCD, English: Civic Democratic Union) is a network of forty Honduran activist organizations, which took an active part during the 2009 Honduran constitutional crisis, promoting several demonstrations against the forme ...

Union of the Democratic Centre (disambiguation) Union of the Democratic Centre or Union of the Democratic Center may refer to: *Union of the Democratic Centre (Argentina), a centrist party in Argentina *Union of the Democratic Centre (Greece), a former liberal party in Greece * Union of the Demo ...

, party name in various countries *

Union of the Democratic Centre (Spain) The Union of the Democratic Centre (, UCD, also translated as "Democratic Centre Union") was an electoral alliance, and later political party, in Spain, existing from 1977 to 1983. It was initially led by Adolfo Suárez (1977-1981) and then by Le ...

Union of the Democratic Centre (Argentina) The Union of the Democratic Centre (, UCD or UCeDé) is a centre-right to right-wing conservative and economically liberal political party in Argentina Argentina, officially the Argentine Republic, is a country in the southern half of ...

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