IFX

IFX may refer to:


 * IFX AG or Infineon Technologies AG, a German semiconductor manufacturer
 * KFX/IFX, a joint South Korean and Indonesian program to develop a fighter jet
 * IFX Piranha, video software for Linux
 * Clarisse IFX, a propriety 3D rendering software
 * IFX, International Flight Training Academy ICAO code
 * Interactive Financial Exchange (IFX), a financial data transfer file format
 * IFX Markets, a trading name of City Index Group