F4, F.IV, F04, F 4, F.4 or F-4 may refer to:
https://en.wikipedia.org/wiki/F4
Jet Fighter USAF Phantom F4 Plane
"Cherish the certainty of now, it kills you a bit at a time."
F4 Phantom
VoivodianJet Fighter USAF Phantom F4 Plane