Italy
An American narcotics agent is murdered in Italy. The head of the department decides to hire Larry Stanziani, 'The Cobra'. Larry, a former agent and now a third-rate private detective, uses the opportunity to get even with an old enemy, but soon he finds out he's facing a relentless organization. - IMDb
| Ameiliktos ektelestis katharmaton (reissue title) |  Greece |
| Cobra |  France |
| Cobra - den farliga mannen |  Finland |
| Cobra - vaarallinen mies | Finland |
| Cobra Day (video box title) |  West Germany |
| Cobra'en slår til igen (video box title) |  Denmark |
| Cobraen slår til | Denmark |
| Cobraen slår til |  Norway |
| Day of the Cobra |  Canada |
| Day of the Cobra (theatrical title) |  USA |
| Day of the Cobra (complete title) | |
| The Day of the Cobra (video box title) |  United Kingdom |
| El Día de la Cobra |  Peru |
| El Día del Cobra |  Spain |
| Dzień kobry |  Poland |
| Il giorno del Cobra | Italy |
| Le jour du cobra | France |
| Kobra |  Turkey |
| A Kobra napja |  Hungary |
| O Dia do Cobra |  Brazil |
| O Dia do Cobra |  Portugal |
| Pira to nomo sta heria mou (transliterated title) | Greece |
| Polisman Cobra |  Sweden |
| Der Tag der Cobra | West Germany |
| Der Tag der Cobra |  Austria |
| Uppdraget | Sweden |
| День кобры |  Soviet Union |
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Stefania Girolami Goodwin [17] | Papasian's Secretary |
