'''TUD''' can refer to:
* [[Tud]], a village in Iran * [[Darmstadt University of Technology]] ({{langx|de|Technische Universität Darmstadt|links=no}}) * [[Delft University of Technology]] ({{langx|nl|Technische Universiteit Delft|links=no}}) * [[Dresden University of Technology]] ({{langx|de|Technische Universität Dresden|links=no}}) * [[Technical University of Denmark]] * [[Tobacco use disorder]] * [[Technological University Dublin]] * [[PSA TUD engine]], the diesel variant of a family of car engines
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