List of Famous people who are 78

Sir Dennis Barry Gillings is a British-born American billionaire statistician and entrepreneur, the founder and former chairman of Quintiles, a clinical research company.

Jay Earley is an American computer scientist and psychologist. He invented the Earley parser in his early career in computer science. Later he became a clinical psychologist specializing in group therapy and Internal Family Systems Therapy (IFS), including working with the inner critic. He has created the Pattern System, a personality system, and Self-Therapy Journey, a web application for psychological healing and behavior change.

Knut T. Storbukås, more commonly known by his stage name, Sputnik, is a musician and truck driver from Bostrak in the village of Tørdal which is in the municipality of Drangedal, Telemark. His most well known songs are Skilles Johanne og Lukk opp din hjertedør Open Up Your Heart.

Donald Eugene Brownlee is a professor of astronomy at the University of Washington at Seattle and the principal investigator for NASA's Stardust mission. His primary research interests include astrobiology, comets, and cosmic dust. He was born in Las Vegas, Nevada.