| Country | Date | |
|---|---|---|
| Ireland | 11 May 2012 | |
| UK | 11 May 2012 | |
| Philippines | 30 May 2012 | |
| Israel | 31 May 2012 | |
| Cambodia | 1 June 2012 | |
| Canada | 1 June 2012 | (limited) |
| Poland | 1 June 2012 | |
| Taiwan | 1 June 2012 | |
| USA | 1 June 2012 | (Video On Demand) |
| USA | 1 June 2012 | (limited) |
| Iceland | 13 June 2012 | |
| Denmark | 14 June 2012 | |
| Hungary | 14 June 2012 | |
| Netherlands | 14 June 2012 | |
| Singapore | 14 June 2012 | |
| India | 15 June 2012 | |
| Czech Republic | 21 June 2012 | |
| Greece | 21 June 2012 | |
| Serbia | 21 June 2012 | (Belgrade) (premiere) |
| Turkey | 22 June 2012 | |
| Croatia | 28 June 2012 | |
| Japan | 14 July 2012 | |
| Finland | 20 July 2012 | |
| Georgia | 23 August 2012 | |
| Hong Kong | 23 August 2012 | |
| Portugal | 23 August 2012 | |
| Russia | 23 August 2012 | |
| Austria | 28 September 2012 | (/slash Filmfestival) |
| Germany | 4 October 2012 | (DVD premiere) |
| Sweden | 17 October 2012 | (DVD premiere) |
| Mexico | 3 January 2013 | (Blu-ray & DVD premiere) |
| Pirana 3DD | Czech Republic (imdb display title) / Serbia (imdb display title) / Turkey (imdb display title) (Turkish title) |
| Piranha 2 | Brazil (imdb display title) / Germany (imdb display title) / USA (working title) |
| Piranha 3DD | Hungary (imdb display title) / Israel (imdb display title) (Hebrew title) / Sweden (imdb display title) |
| Пираня 3DD | Bulgaria (Bulgarian title) |
| Piraña 2DD | Mexico (imdb display title) |
| Piraña 3DD | Spain (imdb display title) |
| Piranha DD | USA (DVD title) |
| Piranha Returns | Japan (imdb display title) (English title) |
| Piranha Three-Double-D | USA (alternative spelling) |
| Piranha XXL | Portugal (imdb display title) |
| Piranhas 3DD: I epistrofi | Greece (imdb display title) |
| Pirania 3DD | Poland (imdb display title) |
| Piranijos 3DD | Lithuania (alternative transliteration) |
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