American people of Ukrainian-Jewish descent

Theodore Samuel Motzkin (26 March 1908 – 15 December 1970) was an Israeli-American mathematician.

Harry Pregerson (October 13, 1923 – November 25, 2017) was a United States circuit judge appointed to the United States Court of Appeals for the Ninth Circuit by President Jimmy Carter in 1979. Pregerson was regarded as one of the judiciary's most liberal judges, attracting both praise and criticism for his insistence on placing his conscience above court precedent.

Abraham Sinkov (August 22, 1907 – January 19, 1998) was a US cryptanalyst. An early employee of the U.S. Army's Signal Intelligence Service, he held several leadership positions during World War II, transitioning to the new National Security Agency after the war, where he became a deputy director. After retiring in 1962, he taught mathematics at Arizona State University.

Michael Armand Hammer (September 8, 1955 – November 20, 2022) was an American businessman. He was the son of Julian Armand Hammer and the grandson of industrialist Armand Hammer. Best known for his ties to Occidental Petroleum, the company of his late grandfather, Hammer oversaw the Hammer International Foundation, the Armand Hammer Foundation, and owned numerous businesses that included Hammer Galleries, and Hammer Productions, a television and film production company located in Los Angeles, California.
Hammer sat on the board of directors and the executive committee for the Los Angeles Dream Center, and was on the Investment Committee and Board of Reference for Oral Roberts University. Hammer was the owner and chief executive of the Knoedler, an art dealership in New York City, which closed in 2011 after purchasing and reselling $80 million in forged paintings bearing the signature of abstract expressionists such as Mark Rothko and Jackson Pollock.

Jessica Whitney Dubroff (May 5, 1988 – April 11, 1996) was a seven-year-old American trainee pilot who died while attempting to become the youngest person to fly a light aircraft across the United States. On day two of her quest, the Cessna 177B Cardinal single-engine aircraft, piloted by her flight instructor, Joe Reid, crashed during a rainstorm immediately after takeoff from Cheyenne Regional Airport in Cheyenne, Wyoming, killing Dubroff, her 57-year-old father Lloyd Dubroff, and Reid.: 6 Although billed by the media as a pilot, Dubroff was not legally able to be a pilot because of her age. She did not possess a medical certificate or a student pilot certificate, since they require a minimum age of 16 or a pilot certificate that requires a minimum age of 17, according to U.S. Federal Aviation Administration (FAA) regulations. At the time of her trip, there was no record-keeping body that recognized any feats by underage pilots. Nevertheless, local, national, and international news media picked up and publicized Dubroff's story, and closely followed her attempt until its tragic ending.The U.S. National Transportation Safety Board (NTSB) investigated the crash and concluded that the fatality was caused by Reid's improper decision to take off in poor weather conditions, his overloading the aircraft, and his failure to maintain airspeed. The three factors resulted in a stall and subsequent fatal crash in a residential neighborhood. The NTSB also determined that "contributing to the [instructor's] decision to take off was a desire to adhere to an overly ambitious itinerary, in part, because of media commitments.": 53