FOOF may refer to: Flags of Our Fathers, a book about the Battle of Iwo Jima Flags of Our Fathers (film), a film based on the book Independent Order of Odd Fellows (Fraternal Order of Odd Fellows) Pentium F00F bug, a design flaw in early Intel microprocessors Foof (artist), former drummer with The Bloodhound Gang Dioxygen difluoride, a chemical compound with the formula FOOF