Ulrike Patzelt (August 8, 1944 – February 18, 2005), better known as Uli Derickson, was a flight attendant during the June 14, 1985 hijacking of TWA Flight 847 by Organization of the Oppressed on Earth terrorists, a group with alleged links to Hezbollah. Derickson is credited with helping protect 152 passengers and crew members.
Born in what is now the Czech Republic, Derickson and her parents were expelled to East Germany in 1945. The family later escaped to West Germany, and Derickson made it to the United States in 1967, where she became a flight attendant for Trans World Airlines.
Derickson was still working as a flight attendant for Delta Air Lines when she received a diagnosis of cancer in August 2003. She died on February 18, 2005, at the age of 60.