List of Famous people who are 73

Geff Harrison is an English singer, composer and musician, known for performing with bands Kin Ping Meh and Twenty Sixty Six and Then.

Dingeman Adriaan Henry van der Sluijs, better known by his stage name Dick Diamonde, is a retired Dutch Australian bass guitarist. He was a founding mainstay member of 1960s rock group The Easybeats. Diamonde, with the group, was inducted into the ARIA Hall of Fame in 2005.

Richard Tandy is an English musician, best known as the keyboardist in the rock band Electric Light Orchestra ("ELO"). His palette of keyboards was an important ingredient in the group's sound, notably on the albums A New World Record, Out of the Blue, Discovery, and Time. Tandy was inducted into the Rock and Roll Hall of Fame on 7 April 2017 as a member of Electric Light Orchestra.

David Lee Marks is an American guitarist, who is best known for being an early member of the Beach Boys. While growing up in Hawthorne, California, Marks was a neighborhood friend of the original band members and was a frequent participant at their family get-togethers. Following his departure from the group, Marks fronted the Marksmen and performed and recorded as a session musician.

David A. Christian is an American who served in the United States Army as a sergeant, lieutenant, and captain during the Vietnam War. While serving as a lieutenant in South Vietnam, he was wounded in action seven times and awarded several medals including the Distinguished Service Cross for extraordinary heroism. He is best known for his veterans' advocacy efforts.

Angelika Bergmann-Kallwass is a German psychologist and television host.

Patrick Simmons is an American musician best known as a founding member of the rock band The Doobie Brothers. Born in Aberdeen, Washington, he has been the only consistent member of the band throughout their tenure. Simmons wrote and sang many songs for the Doobie Brothers, including "South City Midnight Lady", "Dependin' On You", "Echoes of Love", "Wheels of Fortune" and "Black Water", the group's first #1 record.

Jason Hu is a Taiwanese politician. He was the mayor of Taichung as provincial city in 2001-2010 and as special municipality in 2010–2014. He is a member of the Kuomintang (KMT), and has been the Vice Chairman of the party since April 2014.

Richard Lee Roberts is chairman and chief executive officer of the Oral Roberts Evangelistic Association and previously served as president of Oral Roberts University (ORU) for 15 years.

Marco Antônio Barroso Nanini is a Brazilian actor. Most of his activities have been in comedy.