ASDE may refer to: Airport Surface Detection Equipment (surface movement radar) ASDE-X (Airport Surface Detection Equipment, Model X), an airport runway safety tool ASDE-3—Airport Movement Area Safety System Federación de Scouts-Exploradores de España ASD Simplified Technical English ASDEX Upgrade (Axially Symmetric Divertor Experiment) Alliance of Socialists and Democrats for Europe See also ASD (disambiguation)