DDX

DDX may refer to:

• ${\displaystyle {\mathrm {d} \over \mathrm {d} x}}$, a common notation for the differential operator with respect to a variable x
• DD(X), former program name of a class of U.S. Navy destroyers, that became the Zumwalt-class
• Differential diagnosis (DDx or D/Dx), a systematic method used to identify unknowns
• Device Dependent X, graphics device drivers supporting 2D acceleration in the X.Org Server
• DDX (chemistry), a collective name for DDT and its breakdown products DDE and DDD

• 3DDX, a rhythm video game
• All pages with titles containing D.D.X.
• All pages with titles beginning with DDX
• All pages with titles containing DDX
• DD10 (disambiguation)
• D2X (disambiguation)
• DX (disambiguation)
• DXX (disambiguation)
• DXD (disambiguation)