Sarah, Duchess of York (née Sarah Margaret Ferguson; 15 October 1959) is a charity patron, spokesperson, writer, film producer, television personality and former member of the British Royal Family. She was married to Queen Elizabeth II's second son, Prince Andrew, Duke of York, from 1986 to 1996.

The Duchess is the daughter of Major Ronald Ferguson and Susan Barrantes (who are both deceased). Her children, Princess Beatrice of York and Princess Eugenie of York, are fifth and sixth in line of succession to the British Throne, respectively.

She is popularly referred to as "Fergie", as are many famous individuals with the last name Ferguson.