Cecily of York (20 March 1469 – 24 August 1507), also known as Cecelia, was the third daughter of King Edward IV of England and his queen consort Elizabeth Woodville.
Shortly after the death of her father and before the assumption of the throne by her uncle King Richard III, Cecily and her siblings were declared illegitimate. Queen Elizabeth, fearing for the children's lives, moved them to Westminster Abbey, where the late king's family received asylum and spent about a year. After Richard III promised not to harm the children, Cecily and her sisters went to court. Soon there may have been rumors that the king was going to marry one of his nieces – Elizabeth or Cecily. However, shortly before his death, Richard III arranged the marriage of Cecily to one of his supporters – Ralph Scrope, the younger brother of the 6th Baron Scrope of Masham, who was much lower in status by birth than the princess.