F-X Project
# F-X Project

F-X Project may refer to:

* F-X (Japan), Japan Air Self-Defense Force's next generation main combat aircraft procurement program.
* F-X fighter program, a multistage program to purchase modern aircraft for the Republic of Korea Air Force.
* Project F-X2 (known as F-X before 2007), a purchase of fighter aircraft by the Brazilian Air Force.
* A program by the United States Air Force that led to the McDonnell Douglas F-15 Eagle
