Kourtney Mary Kardashian (born April 18, 1979) is an American entrepreneur, socialite, model, and reality television personality who gained fame as a cast member of Keeping Up with the Kardashians, Kourtney and Kim Take New York, and Kourtney and Khloé Take Miami.She is the oldest child of Kris Jenner and defense attorney Robert Kardashian, the sister of socialites Khloé Kardashian, Kim Kardashian, and Rob Kardashian.
Kourtney Kardashian was born in Mill Valley, California, and is the eldest child of late attorney Robert Kardashian and Kris Jenner (née Houghton) and is the sister of Kim, Khloé and Rob Kardashian. She grew up in Los Angeles, and is of Armenian descent on her father's side and Scottish and Dutch on her mother's. Her father, Robert Kardashian, best known for being O. J. Simpson’s lawyer during his murder trial, died on September 30, 2003. Her mother, Kris, divorced Robert Kardashian in 1989 and married former Olympian Bruce Jenner in 1991.After her parents divorced, Kourtney lived with her father.
Kardashian attended the Roman Catholic all-girls school Marymount High School. Following graduation, she left California, moving to Dallas, Texas, where she attended Southern Methodist University for two years. She then moved to Tucson, Arizona, and attended the University of Arizona, graduating with a degree in Theatre Arts and a minor in Spanish. Her classmates included Nicole Richie and Luke Walton. After her mother, Kris, married Bruce Jenner, Kardashian became stepsister to three stepbrothers, (from oldest to youngest) Burt Jenner, Brandon Jenner and Brody Jenner, and stepsister Casey Jenner. She also has two half-sisters, Kendall and Kylie Jenner.
Kardashian first became known to reality television audiences on the 2005 series, Filthy Rich: Cattle Drive, on which she earned money for charity. She then became a cast member on Keeping Up with the Kardashians, which depicts the lives of her extended family. She and her sister Khloé starred in their own spinoff reality show, Kourtney and Khloé Take Miami, the first season of which documented their opening of the Miami D-A-S-H location in 2009. In January 2011, Kourtney and Kim Take New York premiered, which documents her and sister Kim opening their third D-A-S-H store in New York.
Kourtney and her mother opened children's clothing boutiques in both the Los Angeles area and New York City, called Smooch, which carries the brand Crib Rock Couture. As seen on Keeping Up with the Kardashians, Kardashian co-owns and operates D-A-S-H, a clothing boutique in Los Angeles, Miami, and New York City with sisters Kim and Khloé.
Kardashian has a number of endorsement deals along with her sisters Khloe and Kim. They are spokeswomen for the diet supplement Quick Trim, which is not FDA approved. She also represents the skincare line "PerfectSkin" with her sisters, which was developed by Dr. Ron DiSalvo for Perfect Science Labs.