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
• Forrestal, a surname of Irish origin

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