Olga Gray | |
|---|---|
| Born | 28 November 1906 Manchester, England |
| Died | 19 July 1990 (aged 83) Toronto, Canada |
| Nationality | British |
| Other names | Miss X |
| Occupation(s) | Intelligence officer, Secretary |
| Espionage activity | |
| Allegiance | United Kingdom  |
| Service branch | MI5 |
| Service years | 1931–1938 |
| Rank | Agent |
Olga Isabel Gray (28 November 1906 – 19 July 1990) was an English secretary and typist who acted as a double agent in the 1930s after being recruited by MI5 to infiltrate British communist groups.