Granville George Waldegrave, 4th Baron Radstock, CBE (1 September 1859 – 2 April 1937) was a baron in the Peerage of Ireland.
Radstock was the eldest son of Granville Waldegrave, 3rd Baron Radstock and his wife, Susan Charlotte Calcroft. He was educated at Repton School and graduated from Trinity College, Cambridge with a BA degree.
Radstock succeeded to the barony upon the death of his father on 8 December 1913.
Radstock was invested as a Commander of the Order of the British Empire (CBE).
Lord Radstock died on 2 April 1937, aged 77. He was unmarried and was succeeded in the peerage by his younger brother Montague Waldegrave, 5th Baron Radstock.
| Escutcheon: | Per pale Argent and Gules a crescent Sable for difference. |
| Crest: | Out of a ducal coronet Or a plum of five ostrich feathers per pale Argent and Gules a crescent Sable for difference. |
| Supporters: | Dexter a talbot reguardant wings expanded and elevated holding in the dexter claw a thunderbolt all Proper. |
| Motto: | St Vincent[1] |