Forrestal may refer to:
- James Forrestal (1892–1949), United States Secretary of Defense
- USS Forrestal, United States Navy aircraft carrier
- 1967 USS Forrestal fire, a deadly fire aboard the USS Forrestal
- Forrestal Range, a mountain range in Antarctica
- James V. Forrestal Building, headquarters of the United States Department of Energy
- The James Forrestal Campus of Princeton University in Plainsboro Township, New Jersey
- Forrestal Village a mixed-use development near Princeton, New Jersey
- Michael Forrestal one of the leading aides to McGeorge Bundy, the national security adviser of President John F. Kennedy