Famous Friends of Mary-Kate Olsen

List of famous people who are friends with Mary-Kate Olsen. Friends are listed below with photos when available. Every person on this list has either been seen in public with Mary-Kate Olsen, or is known to be acquaintances or best friends with Mary-Kate Olsen. "Best Friend" is a title that can change at any time, so this list includes all close friends of Mary-Kate Olsen throughout their career. From the people who have had a falling out with Mary-Kate Olsen to Mary-Kate Olsen's current best friend. Notable examples are listed below. If you see any Mary-Kate Olsen friends that are missing from the list, you can add them below and make this list of Mary-Kate Olsen's friends that much better. (7 Items)