- Gabčík, Jozef 1
- Garran, Peter 1
- Gehlen, Major General Reinhard 1, 2, 3, 4
- Georg, Rita 1
- George V, King 1, 2
- ‘George V circle’ 1
- George VI, King 1
- Gessmann, Wilhelm 1
- Geyr von Schweppenburg, General Leo 1, 2, 3, 4, 5
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- Gibson, Harold 1
- Gisevius, Vice-Consul Hans Bernd 1
- Giuntini, F. P. 1
- Glaser-Skalny, Dr Ivan 1
- Gledhill, Cecil 1
- Godfrey, Admiral John 1
- Goebbels, Joseph 1, 2, 3, 4, 5, 6, 7, 8
- Goetz, Willi 1
- Goldring, Douglas 1
- Golitsyn, Ekaterina 1
- Golitsyn, Prince Vladimir 1
- Gorbachev, Mikhail 1, 2
- Göring, Hermann 1, 2, 3, 4, 5
- Gorky, Maxim 1, 2, 3, 4, 5
- Gouzenko, Igor 1, 2, 3
- Gowen, William 1, 2
- Great Depression 1, 2, 3
- Greene, Graham 1
- Gregor, Werner 1
- Gregory, John 1
- Greig, Sir Louis 1, 2
- Grieve, Robert 1
- Gurlitt, Cornelius 1