What is "tfx"

TFX may refer to:

• TFX, a fighter aircraft requirement for the United States that led to the General Dynamics F-111 Aardvark
• TFX (video game), a combat flight simulator game (full title TFX: Tactical Fighter eXperiment)
• Tokyo Financial Exchange (TFX), a futures exchange for trading futures contracts
• TFX (Turkey), a proposed fighter aircraft for Turkish Air Force service
• TFX, a power supply specification