Ellen Brandenborg (born 7 January 1906) is a Danish supercentenarian, who is at 114 years, 139 days old, second oldest living person in Denmark, after Signe Højer.
Ellen was born on 7 January 1906 as as the fourth child in Skørping. She was called Adelaide by her French grandmother. Her father was a watchmaker and Ellen's family moved to Copenhagen, when her father got a job as a foreman at a large watchmaker and royal court. Ellen said her mother taught her how to make good food with lots of vegetables. Her mother passed away at 98. In 1929, Ellen Adelaide traveled to Montreal, Canada to work in the house. She met Carl Brandenborg at the Danish Church. He worked as an engineer and sailed. They married and had four children. The family moved to Denmark in 1936. The family ended up with buying of a house in 1940 on Voldbækvej 11 in Brabrand. After husband's death in 1982, Ellen moved in apartment Kløverparken.
Ellen said that healthy food and joy of life is the recipe for a long life. Now she lives in Aarhus, Midtjtylland.