List of Famous people who are 55

Jennifer Diane Grant is an American actress. The daughter of actors Cary Grant and Dyan Cannon, she is best known for roles in the television series Beverly Hills, 90210 and Movie Stars.

Dee Ocleppo Hilfiger is an American fashion designer and entrepreneur.

Dennis Allen Mitchell is a former American college and international track and field athlete, who was a member of the gold medal-winning team in the 4 x 100 meters relay race at the 1992 Summer Olympics.

Corinne Le Quéré is a French-Canadian scientist. She is Royal Society Research Professor of Climate Change Science at the University of East Anglia (UEA) and former Director of Tyndall Centre for Climate Change Research. She is the chair of the French High Council on Climate and member of the UK Climate Change Committee. Her research focuses on the interactions between the carbon cycle and climate change.