| Country | Date | |
|---|---|---|
| UK | 10 March 1964 | (London) |
| Finland | 18 September 1964 | |
| Turkey | February 1965 | |
| Sweden | 15 March 1965 | |
| USA | 13 October 1965 | (New York City, New York) |
| West Germany | 4 February 1966 | |
| Denmark | 11 April 1966 | |
| Japan | 9 December 1967 |
| Hot Enough for June | UK (original title) |
| Agent 8 3/4 | Denmark / USA |
| 2on Grafeion kataskopeias | Greece (transliterated ISO-LATIN-1 title) |
| Agent 008 3/4 | USA (promotional title) |
| Agent 8¾ | USA (alternative spelling) |
| Agent Eight and Three Quarters | USA (alternative spelling) |
| Alcoba para dos espías | Argentina |
| Demasiado cálido para junio | Spain |
| Eidiki apostoli | Greece (reissue title) |
| Kuumat linjat | Finland |
| Manche mögen's geheim | West Germany |
| Sahte casus | Turkey (Turkish title) |
| Troppo caldo per giugno | Italy |
| Vakoojapeli | Finland |
| X 13 agent secret | France |
| X3 Agent Special | France (poster title) |
| Zwischen den Fronten | West Germany |
| Plot summary | Box office and business | User reviews |
| Ratings | External reviews | Main details |