VDX

VDX may refer to:


 * VDX (library software) (for Virtual Document eXchange), an interlibrary loan software product
 * .vdx, a filename extension for the Microsoft Visio XML drawing file format
 * OSEK or OSEK/VDX (Vehicle Distributed eXecutive), a standards body for automotive electronics
 * Virtual Desktop Extender, by RES Software, acquired by Ivanti in 2017