List of Famous people who are 84

Diana McIntosh is a contemporary Canadian composer and pianist who is based in Winnipeg, Manitoba. Hailed by the Canadian Encyclopedia as "a champion of 20th-century Canadian music", she has premiered piano works by such Canadian composers as Peter Allen, Norma Beecroft, Robert Daigneault, Alexina Louie, Marjan Mozetich, Boyd McDonald, Jean Papineau-Couture, Ann Southam, Robert Turner, and John Winiarz. In 1977, she and Southam co-founded Music Inter Alia (MIA), a concert series of "contemporary music for people who don't like contemporary music". She served as the MIA's director until 1991.

Mehdi Karroubi is an Iranian Shia cleric and reformist politician leading the National Trust Party. Following 2009–2010 Iranian election protests, Karroubi was put under house arrest in February 2011 – reportedly ordered by the Supreme Leader of Iran – without officially being charged, although he is accused of being a "seditionist" and "traitor". As of 2018, he is still confined to his house.

Olayinka Koso-Thomas is a Nigerian-born doctor who lives in Sierra Leone. She is known internationally for her efforts to abolish female genital cutting. In 1998, she shared a Prince of Asturias Award for this work.

Fred Ulysse was a French actor. He was known for his role of Martin Féral, brother of Jacquou le Croquant in the television series Jacquou le Croquant, based on the novel of the same name by Eugène Le Roy.

Stephen Friedman is the former Chairman of the United States President's Intelligence Advisory Board. He was nominated on October 27, 2005, to replace Brent Scowcroft in the position.

Neeme Järvi is an Estonian American conductor.