Each year the population of sleepy Lake Victoria, Arizona explodes from 5,000 to 50,000 residents for the annual Spring Break celebration. But then, an earthquake opens an underwater chasm, releasing an enormous swarm of ancient Piranha that have been dormant for thousands of years, now with a taste for human flesh. This year, there's something more to worry about than the usual hangovers and complaints from locals, a new type of terror is about to be cut loose on Lake Victoria.
You can now watch Piranha 3D online on the following streaming providers in the United States.
| Production | Bob Weinstein | Executive Producer |
| Production | Harvey Weinstein | Executive Producer |
| Costume & Make-Up | Sanja Milković Hays | Costume Design |
| Costume & Make-Up | Katherine James | Makeup Department Head |
| Camera | John R. Leonetti | Director of Photography |
| Art | Clark Hunter | Production Design |
| Costume & Make-Up | Art Anthony | Makeup Artist |
| Visual Effects | Kevin O'Neill | Visual Effects Supervisor |
| Camera | Michael St. Hilaire | "A" Camera Operator |
| Art | Marcia Calosio | Set Decoration |
| Art | Marisa Frantz | Art Direction |
| Production | Mark Canton | Producer |
| Production | Grégory Levasseur | Producer |
| Directing | Alexandre Aja | Director |
| Production | Alexandre Aja | Producer |
| Editing | Baxter | Editor |
| Sound | Michael Wandmacher | Original Music Composer |
| Sound | Michael Wandmacher | Music Programmer |
| Sound | Michael Wandmacher | Music Producer |
| Art | Sarah Sprawls | Set Decoration Buyer |
| Production | Faith Hibbs-Clark | Local Casting |
| Writing | Josh Stolberg | Writer |
| Camera | Peter Zuccarini | Underwater Director of Photography |
| Production | Marc Toberoff | Producer |
| Art | Scott Buckwald | Property Master |
| Sound | Joshua Winget | Music Editor |
| Production | Alyssa Weisberg | Casting |
| Production | Rebecca Gushin | Casting Associate |
| Sound | Marcel Pothier | Supervising Sound Editor |
| Lighting | Joshua Anderson | Best Boy Electric |
| Production | Hisako Tsukuba | Executive Producer |
| Editing | Byron Wong | First Assistant Editor |
| Visual Effects | Neville Page | Creature Design |
| Camera | Mark Meyers | "B" Camera Operator |
| Visual Effects | Mike Bundlie | Visual Effects |
| Sound | Christian Rivest | Sound Designer |
| Costume & Make-Up | Irena Stepić | Key Costumer |
| Visual Effects | Colin Davies | Visual Effects Supervisor |
| Production | Mark Devendorf | Producer's Assistant |
| Sound | Lise Wedlock | Foley Artist |
| Crew | Terry Kempf | Propmaker |
| Visual Effects | Amit Dhawal | Visual Effects |
| Sound | Kate Jesse | Boom Operator |
| Art | Ricardo Guillermo | Set Designer |
| Visual Effects | Thomas Tannenberger | Visual Effects Supervisor |
| Crew | Caius Man | Special Effects Coordinator |
| Visual Effects | Olcun Tan | Visual Effects Supervisor |
| Art | Bill Holmquist | Construction Coordinator |
| Visual Effects | Rocco Passionino | Visual Effects Supervisor |
| Visual Effects | George Macri | Visual Effects Producer |
| Camera | Gene Page | Still Photographer |
| Crew | Sue Len Quon | Visual Effects Editor |
| Editing | Aidan Stanford | Color Timer |
| Visual Effects | Marco Recuay | Visual Effects Supervisor |
| Visual Effects | Shant Jordan | Stereoscopic Supervisor |
| Crew | Nicole Randall | Stunt Double |
| Crew | Brandon Schaafsma | Visual Effects Editor |
| Lighting | Frank R. Jimenez Jr. | Rigging Gaffer |
| Camera | Peter Manno | Underwater Camera |
| Sound | Mark Lanza | ADR Supervisor |
| Directing | Judi Townsend | Script Supervisor |
| Editing | Carl S.G. Moore | Digital Intermediate Producer |
| Crew | Blair Tennessy | CG Supervisor |
| Sound | Jean-François Sauvé | Sound Effects Editor |
| Crew | Adam Klein | Compositor |
| Sound | Guy Francoeur | Foley Artist |
| Directing | Betty Hugo | Script Supervisor |
| Crew | Donnie Dean | Special Effects Technician |
| Editing | Serge Harvey | Digital Intermediate Editor |
| Costume & Make-Up | Loretta James-Demasi | Key Makeup Artist |
| Visual Effects | Leo Vezzali | Stereoscopic Supervisor |
| Lighting | Tim Marshall | Gaffer |
| Visual Effects | Chris Holmes | Visual Effects |
| Costume & Make-Up | Maggie McFarland | Costumer |
| Sound | Martin Pinsonnault | Sound Designer |
| Costume & Make-Up | Gina G. Aller | Costumer |
| Costume & Make-Up | Matt Chase | Set Costumer |
| Costume & Make-Up | Lorenzo Hearns Jr. | Key Costumer |
| Costume & Make-Up | Jeffrey Sacino | Hair Department Head |
| Visual Effects | Sean Hoessli | Visual Effects Coordinator |
| Costume & Make-Up | Nava R. Sadan | Costume Supervisor |
| Art | Becky Herron | Art Department Coordinator |
| Crew | Charles Rose | CG Supervisor |
| Visual Effects | Adam O'Brien-Locke | Visual Effects Coordinator |
| Visual Effects | Derek Wentworth | Visual Effects Supervisor |
| Visual Effects | Joel Fletcher | Animation |
| Lighting | Howard R. Campbell | Lighting Technician |
| Visual Effects | Harry Walton | Senior Animator |
| Visual Effects | Michael Gaiser | Visual Effects |
| Visual Effects | William R. Wright | Lead Animator |
| Visual Effects | Don Waller | Animation Supervisor |
| Costume & Make-Up | Henry Soyos | Key Hair Stylist |
| Camera | Fred Gibson | Grip |
| Crew | Emilio Ghorayeb | Visual Effects Editor |
| Visual Effects | Jeff Edwards | Mechanical Designer |
| Camera | Robert Settlemire | Assistant Camera |
| Crew | Robert Benavidez | Special Effects Technician |
| Sound | Guy Pelletier | Dialogue Editor |
| Sound | Robin Urdang | Music Supervisor |
| Production | Kathleen Keller | Production Coordinator |
| Editing | Paul Parsons | First Assistant Editor |
| Camera | Kris Krosskove | Second Unit Director of Photography |
| Crew | Guillaume Poulin | Post Production Assistant |
| Directing | Nicole Garcea | Script Supervisor |
| Sound | Michael B. Koff | Sound Mixer |
| Production | Samantha Brooks | Production Assistant |
| Crew | Lance Jay Velazco | Video Assist Operator |
| Art | Kristen Spinning | Graphic Designer |
| Crew | Gregg Singer | Craft Service |
| Visual Effects | Ahmed Shehata | Visual Effects |
| Visual Effects | Scott Singer | Visual Effects |
| Visual Effects | Niketa Roman | Visual Effects Coordinator |
| Visual Effects | Matt Kutcher | Special Effects Supervisor |
| Camera | Paul Santoni | First Assistant Camera |
| Visual Effects | Damian Isherwood | 3D Generalist |
| Camera | Jarrod Wilson | Grip |
| Crew | Jessica Harbeck | Utility Stunts |
| Visual Effects | Sylvain Theroux | Visual Effects Supervisor |
| Directing | Rip Murray | First Assistant Director |
| Sound | Ian Herzon | Sound Effects Editor |
| Costume & Make-Up | Darren Clark | Costumer |
| Editing | Evan Fisher | Editor |
| Production | Charley Medigovich | Casting Associate |
| Lighting | Oded Raz | Lighting Artist |
| Sound | Jo Caron | Foley Recordist |
| Crew | Nathalie Tremblay | Compositor |
| Visual Effects | Melanie Callaghan | Visual Effects Coordinator |
| Production | Billy Bonifield | Production Coordinator |
| Crew | Aaron Newton | Propmaker |
| Visual Effects | Andrew E. Tilles | Visual Effects Producer |
| Sound | Antoine Morin | Sound Effects Editor |
| Crew | Tristan Zerafa | Compositor |
| Art | Vicki Dittemore | Set Dresser |
| Crew | Cris Rankin | Animal Coordinator |
| Lighting | John Stewart | Electrician |
| Lighting | Wayne Marshall | Best Boy Electric |
| Visual Effects | Chris Paizis | Matchmove Supervisor |
| Costume & Make-Up | Robin Borman | Costumer |
| Crew | Laurent Taillefer | CG Supervisor |
| Crew | Matthew James Kutcher | Special Effects Technician |
| Sound | Susie Bench | Conductor |
| Crew | Bryan Fletchall | Techno Crane Operator |
| Production | Scotty Atkins | Extras Casting |
| Crew | Martin Hall | Compositor |
| Crew | Hirotatsu Taniguchi | Set Production Assistant |
| Crew | Larry D. Koszakovszky | Propmaker |
| Editing | Nicolae Ilies | Digital Colorist |
| Costume & Make-Up | Melanie Hocking | Costumer |
| Visual Effects | Scott Riopelle | Compositing Supervisor |
| Production | Roxann Langlois | Travel Coordinator |
| Directing | Dennis Burrell | First Assistant Director |
| Camera | Corey Erwin | Grip |
| Visual Effects | Michael Wile | Visual Effects Supervisor |
| Crew | Christian Moreton | Compositor |
| Lighting | James Chretien | Lighting Artist |
| Visual Effects | Shane Cook | Compositing Supervisor |
| Camera | Dan Reilly | Key Grip |
| Camera | Quinton Reilly | Key Grip |
| Sound | Maxime Potvin | Assistant Foley Artist |
| Sound | Andy Stallabrass | ADR Recordist |
| Production | P.J. Germain | Production Assistant |
| Costume & Make-Up | Jessica Carpenter | Costumer |
| Production | Kristofer Cross | Production Assistant |
| Visual Effects | Kristofer Cross | Visual Effects Production Assistant |
| Crew | Roy Goode | Special Effects Technician |
| Crew | Thomas Zell | Special Effects Technician |
| Crew | Edward Gettis | Special Effects Technician |
| Visual Effects | Ken Busick | Stereoscopic Supervisor |
| Visual Effects | Eric Doiron | Compositing Supervisor |
| Crew | Dipesh Mistry | Visual Effects Editor |
| Crew | Linda Stanley | Studio Teacher |
| Production | Rosa Dias | Production Secretary |
| Visual Effects | Cynthia Crimmins | Visual Effects Coordinator |
| Production | Sage Asteak | Production Assistant |
| Visual Effects | Matt Jacobs | Visual Effects Supervisor |
| Production | C.J. Izzo | Production Assistant |
| Camera | Scott Ronnow | First Assistant Camera |
| Lighting | Jon McGinty | Lighting Technician |
| Art | Jordan Fuller | Art Department Assistant |
| Art | Jordan Fuller | Graphic Designer |
| Art | Sage Emmett Connell | Leadman |
| Crew | Toby Cook | Propmaker |
| Crew | Kenneth Heimer | Propmaker |
| Crew | Karl Swauger | Propmaker |
| Art | Benjamin Ireland | Props |
| Art | Austin M. James | Props |
| Art | Ted Sorensen | Set Dresser |
| Camera | Stephen L. Whitcomb | Camera Loader |
| Lighting | Ron Waters | Electrician |
| Camera | Jay Coolidge | Grip |
| Camera | Ron Stafford | Grip |
| Lighting | Russell Beard | Lighting Technician |
| Lighting | Greg Harris | Lighting Technician |
| Lighting | Scott Medcalf | Lighting Technician |
| Lighting | Robert S. Nielsen | Lighting Technician |
| Lighting | Shermagne Umali | Lighting Technician |
| Crew | Shermagne Umali | Craft Service |
| Camera | Liam Sinnott | Second Assistant Camera |
| Lighting | Jimmi Lyon | Underwater Gaffer |
| Editing | Brandon Balin | Supervising Editor |
| Costume & Make-Up | Tiffe Fermaint | Costume Assistant |
| Costume & Make-Up | Sabine Huber | Costumer |
| Costume & Make-Up | Patty Nazari | Seamstress |
| Production | Chris Bowe | Casting Associate |
| Production | Joshua Erwin | Extras Casting Assistant |
| Sound | Viateur Paiement | ADR Supervisor |
| Crew | Tom M. Baltazar | Special Effects Technician |
| Crew | Terrence Dembowski | Special Effects Technician |
| Crew | Kyle A. Wasserman | Special Effects Technician |
| Visual Effects | Luca Giorgio | CG Artist |
| Crew | Sean Lewkiw | CG Supervisor |
| Crew | Andrew Honacker | CG Supervisor |
| Crew | Art Karkus | Compositor |
| Crew | Eddie Englander | Compositor |
| Visual Effects | Joseph Spadaro | Effects Supervisor |
| Visual Effects | Ronn Brown | Matte Painter |
| Visual Effects | Slav Kravchenko | Matte Painter |
| Visual Effects | Edward Grad | Matte Painter |
| Visual Effects | SeungJang 'Jack' Kim | Modelling Supervisor |
| Visual Effects | Erin Nicholson | Modelling Supervisor |
| Visual Effects | Quimet Delgado | Visual Effects |
| Visual Effects | Alvaro Sanint | Visual Effects |
| Visual Effects | Scott Simmons | Visual Effects |
| Visual Effects | Shalena Oxley-Butler | Visual Effects Coordinator |
| Visual Effects | Joey Bonander | Visual Effects Coordinator |
| Visual Effects | Stephen Menzies | Visual Effects Producer |
| Production | Megan Shields | Production Assistant |
| Visual Effects | Megan Shields | Visual Effects Production Assistant |
| Visual Effects | Douglas Melville | Visual Effects Production Manager |
| Visual Effects | Nicholas Boughen | Visual Effects Supervisor |
| Visual Effects | Frederic Fortin | Visual Effects Technical Director |
| Crew | Kathleen Holland | Animal Wrangler |
| Production | Alexander T. Carey | Assistant Production Coordinator |
| Production | Nicole Pelner | Assistant Production Coordinator |
| Crew | Noe Carillo | Craft Service |
| Crew | Fernando Castillo | Craft Service |
| Crew | Dominic Sbardella | Craft Service |
| Crew | Richard Till | Craft Service |
| Production | Amanda Curry | First Assistant Accountant |
| Crew | Jimmy O'Connell | Marine Coordinator |
| Crew | Todd Taylor | Marine Coordinator |
| Production | Denyse Rossi | Payroll Accountant |
| Production | Stephanie Wescott | Payroll Accountant |
| Production | RoJeanne Herbel | Post Production Accountant |
| Production | Leah Holmes | Post Production Accountant |
| Crew | Maia November | Post Production Assistant |
| Crew | Kyle Schaberg | Post Production Assistant |
| Production | Matthew K. Grigsby | Production Accountant |
| Production | Lee D. Andrews | Production Assistant |
| Production | Miles Burke | Production Assistant |
| Production | Jonathan Cousimano | Production Assistant |
| Production | Stephanie Fugleberg | Production Assistant |
| Production | Matt Kyhn | Production Assistant |
| Production | Theo Madla | Production Assistant |
| Production | Hector Primero | Production Assistant |
| Production | Victor Primero | Production Assistant |
| Production | Holly Titchen | Production Assistant |
| Production | Michael D. Witman | Production Assistant |
| Production | John P. Martin | Second Assistant Accountant |
| Crew | Scott Corser | Security |
| Crew | Richie Elson | Set Production Assistant |
| Crew | Carey Field | Set Production Assistant |
| Crew | Eric Moody | Stand In |
| Crew | Brittney Morton | Stand In |
| Visual Effects | Aaron Chiesa | VFX Artist |
