British and Irish History: Biographies
- Gerald Fitzgerald 15th earl of Desmond
- Gerry Adams
- Gilbert Burnet
- Gilbert John Elliot-Murray-Kynynmound 4th earl of Minto
- Godiva
- Godwin
- Gordon Brown
- Granville George Leveson-Gower 2d Earl Granville
- Gruffydd ap Llywelyn
- Guy de Beauchamp earl of Warwick
- Guy Fawkes
- Harold
- Harold Harefoot
- Harold Macmillan 1st Earl of Stockton
- Harold Wilson
- Heneage Finch 1st earl of Nottingham
- Henrietta Maria
- Henry 2d duke of Buckingham Stafford
- Henry Addington Viscount Sidmouth
- Henry Beaufort