| Mary of Great Britain | |
|---|---|
 Portrait by Johann Heinrich Tischbein, c. 1754 | |
| Landgravine consort of Hesse-Kassel | |
| Tenure | 1 February 1760 – 14 January 1772 |
| Born | 5 March 1723 (New Style) Leicester House, London, England |
| Died | 14 January 1772 (aged 48) Hanau, Germany |
| Burial | 1 February 1772 Marienkirche, Hanau, Germany |
| Spouse | |
| Issue |
|
| House | Hanover |
| Father | George II of Great Britain |
| Mother | Caroline of Ansbach |
Mary of Great Britain (5 March 1723 – 14 January 1772) was the second-youngest daughter of George II of Great Britain and his wife, Caroline of Ansbach, and Landgravine of Hesse-Kassel as the wife of Frederick II, Landgrave of Hesse-Kassel.