Kliff may refer to: Persons Kliff Hanger, American professional wrestler, better known by his ring name "The Black Diamond" Kliff Hanger Kliff Kingsbury (born 1979), American football coach and former college and professional quarterback Sarah Kliff, American journalist and health policy analyst for The New York Times Music Kliff (band), Finnish boy band Fictional characters Kliff Undersn, founder of the Holy Order in fighting game series Guilty Gear. See List of Guilty Gear characters#Kliff Undersn List of characters Abbreviations Kuala Lumpur International Film Festival, known as KLIFF See also Cliff (disambiguation) Rotes Kliff, a 52-metre high line of sea cliffs between Wenningstedt and Kampen on the German North Sea island of Sylt Morsum-Kliff, an important geological monument in Germany