English: Princess Mary of Great Britain (1723–1772) — British princesses, House of Hannover.
- Second-youngest daughter of King George II of Great Britain and Caroline of Ansbach.
- Marriage to Frederick II, Landgrave of Hesse-Kassel in 1740, four sons, separated in 1754.
- In 1756 she moved to Denmark, to care for the children of her deceased sister, Louise of Great Britain (Queen Louise of Denmark and Norway).
This category has the following 2 subcategories, out of 2 total.