List of Famous people who are 78

Ibrahim Al-Buleihi is a Saudi liberal writer, who is currently a member of the Saudi Shura Council.

Janet Holmes à Court, AC, HonFAHA, HonFAIB is an Australian businesswoman and one of Australia's wealthiest women. She is the Chairman of one of Australia's largest private companies, Heytesbury Pty Ltd, having turned around its fortunes after the death of her husband Robert Holmes à Court in 1990. She retained full ownership of the Heytesbury Group of companies until 2008 when her son, Peter Holmes à Court, assumed ownership, while she remained chairman.

Margaret Olwen MacMillan is a Canadian historian and professor at the University of Oxford. She is former provost of Trinity College, Toronto and professor of history at the University of Toronto and previously at Ryerson University. Macmillan is an expert on history and international relations.

Thomas Edward John Jr., nicknamed "The Bionic Man," is an American retired professional baseball pitcher who played in Major League Baseball (MLB) for 26 seasons between 1963 and 1989. He played for the Cleveland Indians, Chicago White Sox, Los Angeles Dodgers, New York Yankees, California Angels, and Oakland Athletics. He was a four-time MLB All-Star and has the second-most wins (288) of any pitcher since 1900 not in the Hall of Fame. Known for his longevity, John was the Opening Day starter for both the 1966 Chicago White Sox and the 1989 New York Yankees.

Jan de Bont is a Dutch cinematographer, director and film producer. He is widely known for directing the films Speed (1994) and Twister (1996). As a director of photography, de Bont worked on numerous blockbusters and genre films, including Cujo, Flesh and Blood, Die Hard, The Hunt for Red October, and Basic Instinct.

Maceo Parker is an American funk and soul jazz saxophonist, best known for his work with James Brown in the 1960s, as well as Parliament-Funkadelic in the 1970s. Parker was a prominent soloist on many of Brown's hit recordings, and a key part of his band, playing alto, tenor and baritone saxophones. Since the early 1990s, he has toured under his own name.