This is a list of KGB agents who have defected.
| Name | Defection date | Country of defection | Comment |
|---|---|---|---|
| Georges Agabekov | 1930 |  France |
|
| Yuri Bezmenov[1] | 1970 |  Canada |
|
| Igor Cherpinski[2] | |||
| Peter Deryabin[3] | 1953 |  Austria |
|
| Ilya Dzhirkvelov[3] | 1980 |  Switzerland |
|
| Anatoliy Golitsyn[3] | 1961, December 15 |  Finland |
|
| Oleg Gordievsky | 1985, July 19 |  United Kingdom |
|
| Sergei Illarionov[2] | 1992[citation needed] |  Italy |
|
| Sergei Kourdakov | 1971, September 4 | Canada |
|
| Viktor Kravchenko[3] | 1944 | ||
| Walter Krivitsky | 1937, October | France |
|
| Stanislav Levchenko[3] | 1979, October |  Japan |
|
| Oleg Lyalin[3] | 1971 | United Kingdom |
|
| Vasili Mitrokhin | 1992 |  Estonia |
|
| Alexei Myagkov[3] | 1974 |  West Berlin |
|
| Yuri Nosenko[4] | 1962 | Switzerland |
Authenticity of defection disputed[3] |
| Viktor Oshchenko[citation needed] | 1992, July | United Kingdom |
|
| Alexander Orlov | 1938 |  Canada |
Authenticity of defection disputed[3] |
| Vladimir Petrov and Evdokia Petrov [3] | 1954, April 3 |  Australia |
|
| Vitaly Yurchenko | 1985 | Italy |
Authenticity of defection disputed; later returned to USSR.[3] |
Bernd Pulch 