AFX

AFX may stand for:


 * AFX Windows Rootkit 2003, a user-mode Windows rootkit that hides files, processes and registry
 * AFX News Limited, a London financial news agency
 * Animation Framework eXtension, a model for representing 3D graphics content defined in MPEG-4 Part 16
 * Aphex Twin (born 1971), electronic musician
 * Application Framework eXtensions, an old name for the Microsoft Foundation Class Library (MFC)
 * Aurora AFX, a brand of slot car marketed by Aurora Plastics Corporation
 * A replacement for the A-6 Intruder, developed by the United States Navy and United States Air Force (canceled in 1991)