VDF

VDF may be an acronym for:
 * VHF Direction Finder
 * Venda Defence Force
 * Virginia Defense Force
 * Visual DataFlex a Fourth-generation programming language now known simply as DataFlex.
 * FAA LID for: Tampa Executive Airport (formerly known as Vandenberg Airport)
 * Vinylidene difluoride, see: 1,1-Difluoroethylene
 * Verifiable Delay Function, in cryptography