Titia de Lange (born 11 November 1955, Rotterdam) is a professor of Cell Biology and Genetics at Rockefeller University.De Lange obtained her Masters on "Chromatin structure of the human ß-globin gene locus" at the University of Amsterdam in 1981, and subsequently her PhD at the same institution in 1985 with Piet Borst on surface antigen genes in trypanosomes. In 1985 she joined Harold Varmus lab at the University of California, San Francisco and since 1990 she has had a faculty position at the Rockefeller University.She received the Canada Gairdner International Award in 2014 for her discovery of the mechanisms by which mammalian telomeres are protected from deleterious DNA repair and damage responses.