Katherine Ashley, also known as Kat Ashley or Astley, was the first close friend, governess, and Lady of the Bedchamber to Queen Elizabeth I of England. She was the aunt of Catherine Champernowne, who was the mother of Sir Humphrey Gilbert from her first marriage and Walter Raleigh by her second marriage.

A governess is a term for a woman employed as a private tutor, who teaches and trains a child or children in their home. A governess often lives in the same residence as the children she is teaching. In contrast to a nanny, the primary role of a governess is teaching, rather than meeting the physical needs of children; hence a governess is usually in charge of school-aged children, rather than babies.