The title Earl Grey was created in the Peerage of the United Kingdom in 1806 for General Sir Charles Grey. Earl Grey tea is named for the second Earl, who served also as Prime Minister of the United Kingdom.

The subsidiary titles of the Earl Grey are: Viscount Howick (created 1806) and Baron Grey of Howick (1801). Both titles are, along with the Earldom, in the Peerage of the United Kingdom. The title Viscount Howick is the courtesy title for the eldest son of the Earl Grey.

Earls Grey (1806)

• Charles Grey, 1st Earl Grey (1729-1807)
• Charles Grey, 2nd Earl Grey (1764-1845)
• Henry George Grey, 3rd Earl Grey (1802-1894)
• Albert Henry George Grey, 4th Earl Grey (1851-1917)
• Charles Robert Grey, 5th Earl Grey (1879-1963)
• Richard Fleming George Charles Grey, 6th Earl Grey (b. 1939)