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.
| Directing | Alexandre Aja | Director |
| Writing | Josh Stolberg | Writer |
| Production | Alexandre Aja | Producer |
| Production | Mark Canton | Producer |
| Production | Grégory Levasseur | Producer |
| Production | Marc Toberoff | Producer |
| Production | Alyssa Weisberg | Casting |
| Costume & Make-Up | Sanja Milković Hays | Costume Design |
| Costume & Make-Up | Katherine James | Makeup Department Head |
| Camera | Gene Page | Still Photographer |
| Visual Effects | Joel Fletcher | Animation |
| Lighting | Howard R. Campbell | Lighting Technician |
| Crew | Emilio Ghorayeb | Visual Effects Editor |
| Camera | John R. Leonetti | Director of Photography |
| Sound | Michael Wandmacher | Original Music Composer |
| Lighting | Frank R. Jimenez Jr. | Rigging Gaffer |
| Lighting | Tim Marshall | Gaffer |
| Sound | Robin Urdang | Music Supervisor |
| Production | Kathleen Keller | Production Coordinator |
| Editing | Paul Parsons | First Assistant Editor |
| Editing | Byron Wong | First Assistant Editor |
| Costume & Make-Up | Nava R. Sadan | Costume Supervisor |
| Production | Harvey Weinstein | Executive Producer |
| Art | Marisa Frantz | Art Direction |
| Art | Clark Hunter | Production Design |
| Art | Marcia Calosio | Set Decoration |
| Art | Jordan Fuller | Art Department Assistant |
| Art | Becky Herron | Art Department Coordinator |
| Art | Bill Holmquist | Construction Coordinator |
| Visual Effects | Neville Page | Creature Design |
| Art | Kristen Spinning | Graphic Designer |
| Art | Jordan Fuller | Graphic Designer |
| Art | Sage Emmett Connell | Leadman |
| Art | Scott Buckwald | Property Master |
| Crew | Toby Cook | Propmaker |
| Crew | Kenneth Heimer | Propmaker |
| Crew | Terry Kempf | Propmaker |
| Crew | Larry D. Koszakovszky | Propmaker |
| Crew | Aaron Newton | Propmaker |
| Crew | Karl Swauger | Propmaker |
| Art | Benjamin Ireland | Props |
| Art | Austin M. James | Props |
| Art | Sarah Sprawls | Set Decoration Buyer |
| Art | Ricardo Guillermo | Set Designer |
| Art | Vicki Dittemore | Set Dresser |
| Art | Ted Sorensen | Set Dresser |
| Costume & Make-Up | Jeffrey Sacino | Hair Department Head |
| Costume & Make-Up | Henry Soyos | Key Hair Stylist |
| Costume & Make-Up | Loretta James-Demasi | Key Makeup Artist |
| Costume & Make-Up | Art Anthony | Makeup Artist |
| Camera | Michael St. Hilaire | "A" Camera Operator |
| Camera | Mark Meyers | "B" Camera Operator |
| Camera | Robert Settlemire | Assistant Camera |
| Lighting | Wayne Marshall | Best Boy Electric |
| Lighting | Joshua Anderson | Best Boy Electric |
| Camera | Stephen L. Whitcomb | Camera Loader |
| Camera | Kris Krosskove | Second Unit Director of Photography |
| Lighting | John Stewart | Electrician |
| Lighting | Ron Waters | Electrician |
| Camera | Paul Santoni | First Assistant Camera |
| Camera | Scott Ronnow | First Assistant Camera |
| Camera | Jay Coolidge | Grip |
| Camera | Corey Erwin | Grip |
| Camera | Fred Gibson | Grip |
| Camera | Ron Stafford | Grip |
| Camera | Jarrod Wilson | Grip |
| Camera | Dan Reilly | Key Grip |
| Camera | Quinton Reilly | Key Grip |
| Lighting | Russell Beard | Lighting Technician |
| Lighting | Greg Harris | Lighting Technician |
| Lighting | Jon McGinty | Lighting Technician |
| Lighting | Scott Medcalf | Lighting Technician |
| Lighting | Robert S. Nielsen | Lighting Technician |
| Lighting | Shermagne Umali | Lighting Technician |
| Camera | Liam Sinnott | Second Assistant Camera |
| Crew | Bryan Fletchall | Techno Crane Operator |
| Camera | Peter Manno | Underwater Camera |
| Camera | Peter Zuccarini | Underwater Director of Photography |
| Lighting | Jimmi Lyon | Underwater Gaffer |
| Crew | Lance Jay Velazco | Video Assist Operator |
| Editing | Baxter | Editor |
| Editing | Aidan Stanford | Color Timer |
| Editing | Nicolae Ilies | Digital Colorist |
| Editing | Serge Harvey | Digital Intermediate Editor |
| Editing | Carl S.G. Moore | Digital Intermediate Producer |
| Editing | Evan Fisher | Editor |
| Editing | Brandon Balin | Supervising Editor |
| Costume & Make-Up | Tiffe Fermaint | Costume Assistant |
| Costume & Make-Up | Gina G. Aller | Costumer |
| Costume & Make-Up | Jessica Carpenter | Costumer |
| Costume & Make-Up | Darren Clark | Costumer |
| Costume & Make-Up | Sabine Huber | Costumer |
| Costume & Make-Up | Maggie McFarland | Costumer |
| Costume & Make-Up | Robin Borman-Wizan | Costumer |
| Costume & Make-Up | Melanie Hocking | Costumer |
| Costume & Make-Up | Lorenzo Hearns Jr. | Key Costumer |
| Costume & Make-Up | Irena Stepić | Key Costumer |
| Costume & Make-Up | Patty Nazari | Seamstress |
| Costume & Make-Up | Matt Chase | Set Costumer |
| Production | Chris Bowe | Casting Associate |
| Production | Rebecca Gushin | Casting Associate |
| Production | Charley Medigovich | Casting Associate |
| Production | Scotty Atkins | Extras Casting |
| Production | Joshua Erwin | Extras Casting Assistant |
| Production | Faith Hibbs-Clark | Local Casting |
| Visual Effects | Don Waller | Animation Supervisor |
| Visual Effects | Harry Walton | Senior Animator |
| Sound | Andy Stallabrass | ADR Recordist |
| Sound | Mark Lanza | ADR Supervisor |
| Sound | Viateur Paiement | ADR Supervisor |
| Sound | Maxime Potvin | Assistant Foley Artist |
| Sound | Kate Jesse | Boom Operator |
| Sound | Guy Pelletier | Dialogue Editor |
| Sound | Guy Francoeur | Foley Artist |
| Sound | Lise Wedlock | Foley Artist |
| Sound | Jo Caron | Foley Recordist |
| Sound | Martin Pinsonnault | Sound Designer |
| Sound | Christian Rivest | Sound Designer |
| Sound | Ian Herzon | Sound Effects Editor |
| Sound | Antoine Morin | Sound Effects Editor |
| Sound | Jean-François Sauvé | Sound Effects Editor |
| Sound | Michael B. Koff | Sound Mixer |
| Sound | Marcel Pothier | Supervising Sound Editor |
| Crew | Caius Man | Special Effects Coordinator |
| Visual Effects | Matt Kutcher | Special Effects Supervisor |
| Crew | Tom M. Baltazar | Special Effects Technician |
| Crew | Robert Benavidez | Special Effects Technician |
| Crew | Donnie Dean | Special Effects Technician |
| Crew | Terrence Dembowski | Special Effects Technician |
| Crew | Edward Gettis | Special Effects Technician |
| Crew | Roy Goode | Special Effects Technician |
| Crew | Matthew James Kutcher | Special Effects Technician |
| Crew | Kyle A. Wasserman | Special Effects Technician |
| Crew | Thomas Zell | Special Effects Technician |
| Visual Effects | Damian Isherwood | 3D Generalist |
| Visual Effects | Luca Giorgio | CG Artist |
| Crew | Sean Lewkiw | CG Supervisor |
| Crew | Blair Tennessy | CG Supervisor |
| Crew | Andrew Honacker | CG Supervisor |
| Crew | Laurent Taillefer | CG Supervisor |
| Crew | Charles Rose | CG Supervisor |
| Visual Effects | Shane Cook | Compositing Supervisor |
| Visual Effects | Scott Riopelle | Compositing Supervisor |
| Visual Effects | Eric Doiron | Compositing Supervisor |
| Crew | Art Karkus | Compositor |
| Crew | Adam Klein | Compositor |
| Crew | Christian Moreton | Compositor |
| Crew | Tristan Zerafa | Compositor |
| Crew | Martin Hall | Compositor |
| Crew | Nathalie Tremblay | Compositor |
| Crew | Eddie Englander | Compositor |
| Visual Effects | Joseph Spadaro | Effects Supervisor |
| Visual Effects | William R. Wright | Lead Animator |
| Lighting | James Chretien | Lighting Artist |
| Lighting | Oded Raz | Lighting Artist |
| Visual Effects | Chris Paizis | Matchmove 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 | Ken Busick | Stereoscopic Supervisor |
| Visual Effects | Shant Jordan | Stereoscopic Supervisor |
| Visual Effects | Leo Vezzali | Stereoscopic Supervisor |
| Visual Effects | Mike Bundlie | Visual Effects |
| Visual Effects | Quimet Delgado | Visual Effects |
| Visual Effects | Amit Dhawal | Visual Effects |
| Visual Effects | Michael Gaiser | Visual Effects |
| Visual Effects | Chris Holmes | Visual Effects |
| Visual Effects | Alvaro Sanint | Visual Effects |
| Visual Effects | Ahmed Shehata | Visual Effects |
| Visual Effects | Scott Simmons | Visual Effects |
| Visual Effects | Scott Singer | Visual Effects |
| Visual Effects | Adam O'Brien-Locke | Visual Effects Coordinator |
| Visual Effects | Niketa Roman | Visual Effects Coordinator |
| Visual Effects | Sean Hoessli | Visual Effects Coordinator |
| Visual Effects | Shalena Oxley-Butler | Visual Effects Coordinator |
| Visual Effects | Melanie Callaghan | Visual Effects Coordinator |
| Visual Effects | Cynthia Crimmins | Visual Effects Coordinator |
| Visual Effects | Joey Bonander | Visual Effects Coordinator |
| Crew | Sue Len Quon | Visual Effects Editor |
| Crew | Brandon Schaafsma | Visual Effects Editor |
| Crew | Dipesh Mistry | Visual Effects Editor |
| Visual Effects | Andrew E. Tilles | Visual Effects Producer |
| Visual Effects | Stephen Menzies | Visual Effects Producer |
| Visual Effects | George Macri | Visual Effects Producer |
| Visual Effects | Kristofer Cross | Visual Effects Production Assistant |
| Visual Effects | Megan Shields | Visual Effects Production Assistant |
| Visual Effects | Douglas Melville | Visual Effects Production Manager |
| Visual Effects | Matt Jacobs | Visual Effects Supervisor |
| Visual Effects | Derek Wentworth | Visual Effects Supervisor |
| Visual Effects | Nicholas Boughen | Visual Effects Supervisor |
| Visual Effects | Kevin O'Neill | Visual Effects Supervisor |
| Visual Effects | Olcun Tan | Visual Effects Supervisor |
| Visual Effects | Thomas Tannenberger | Visual Effects Supervisor |
| Visual Effects | Michael Wile | Visual Effects Supervisor |
| Visual Effects | Sylvain Theroux | Visual Effects Supervisor |
| Visual Effects | Marco Recuay | Visual Effects Supervisor |
| Visual Effects | Colin Davies | Visual Effects Supervisor |
| Visual Effects | Rocco Passionino | Visual Effects Supervisor |
| Visual Effects | Frederic Fortin | Visual Effects Technical Director |
| Crew | Cris Rankin | Animal Coordinator |
| 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 | Gregg Singer | Craft Service |
| Crew | Richard Till | Craft Service |
| Crew | Shermagne Umali | Craft Service |
| Production | Amanda Curry | First Assistant Accountant |
| Visual Effects | Jeff Edwards | Mechanical Designer |
| 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 |
| Crew | Guillaume Poulin | Post Production Assistant |
| Production | Matthew K. Grigsby | Production Accountant |
| Production | Lee D. Andrews | Production Assistant |
| Production | Sage Asteak | Production Assistant |
| Production | Samantha Brooks | Production Assistant |
| Production | Miles Burke | Production Assistant |
| Production | Jonathan Cousimano | Production Assistant |
| Production | Kristofer Cross | Production Assistant |
| Production | Stephanie Fugleberg | Production Assistant |
| Production | P.J. Germain | Production Assistant |
| Production | C.J. Izzo | Production Assistant |
| Production | Matt Kyhn | Production Assistant |
| Production | Theo Madla | Production Assistant |
| Production | Hector Primero | Production Assistant |
| Production | Victor Primero | Production Assistant |
| Production | Megan Shields | Production Assistant |
| Production | Holly Titchen | Production Assistant |
| Production | Michael D. Witman | Production Assistant |
| Production | Billy Bonifield | Production Coordinator |
| Production | Rosa Dias | Production Secretary |
| Directing | Judi Townsend | Script Supervisor |
| Directing | Nicole Garcea | Script Supervisor |
| Directing | Betty Hugo | Script Supervisor |
| Production | John P. Martin | Second Assistant Accountant |
| Crew | Scott Corser | Security |
| Crew | Richie Elson | Set Production Assistant |
| Crew | Carey Field | Set Production Assistant |
| Crew | Hirotatsu Taniguchi | Set Production Assistant |
| Crew | Eric Moody | Stand In |
| Crew | Brittney Morton | Stand In |
| Crew | Linda Stanley | Studio Teacher |
| Production | Roxann Langlois | Travel Coordinator |
| Sound | Susie Bench | Conductor |
| Sound | Joshua Winget | Music Editor |
| Sound | Michael Wandmacher | Music Producer |
| Sound | Michael Wandmacher | Music Programmer |
| Directing | Rip Murray | First Assistant Director |
| Directing | Dennis Burrell | First Assistant Director |
| Production | Bob Weinstein | Executive Producer |
| Production | Hisako Tsukuba | Executive Producer |
| Production | Mark Devendorf | Producer's Assistant |
| Visual Effects | Aaron Chiesa | VFX Artist |
| Crew | Jessica Harbeck | Utility Stunts |
| Crew | Nicole Randall | Stunt Double |
| Crew | Jeffrey G. Barnett | Stunts |
| Crew | Jeffrey J. Dashnaw | Stunts |
| Crew | Heidi Pascoe | Utility Stunts |
| Crew | Alicia Vela-Bailey | Stunt Double |
| Crew | Jennifer Brusciano | Utility Stunts |
| Crew | Jonathan Arthur | Stunt Double |
| Crew | Ashley Cusato | Utility Stunts |
| Crew | Clay Cullen | Stunts |
| Crew | Christian J. Fletcher | Utility Stunts |
| Crew | Alex Daniels | Stunt Coordinator |
| Crew | Tanner Gill | Stunt Double |
| Crew | Chad Guerrero | Utility Stunts |
| Crew | Szilvia Gogh | Stunt Double |
| Crew | Mandy Kowalski | Utility Stunts |
| Crew | Kim Robert Koscki | Stunt Double |
| Crew | Brian L. Keaulana | Utility Stunts |
| Crew | Dorian Kingi | Utility Stunts |
| Crew | Michael Li | Utility Stunts |
| Crew | Tom McComas | Stunt Double |
| Crew | Chris Papajohn | Utility Stunts |
| Crew | James Mitchell-Clyde | Utility Stunts |
| Crew | Suzanne Reid | Stunt Double |
| Crew | Tara Rice | Utility Stunts |
| Crew | Austin Priester | Utility Stunts |
| Crew | Tim Soergel | Utility Stunts |
| Crew | Michael Trisler | Utility Stunts |
| Crew | Dan Webb | Stunts |
| Crew | Shaun Vickers | Utility Stunts |
| Crew | Cody Weselis | Utility Stunts |
| Crew | Heather Arthur | Stunts |
| Crew | Webster P. Whinery Jr. | Utility Stunts |
| Crew | Michael H. Barnett | Stunts |
| Crew | Erica Day | Stunts |
| Crew | Kris A. Jeffrey | Stunts |
| Crew | Derek Graf | Stunts |
| Crew | Alex Madison | Stunt Double |
| Crew | Malosi Leonard | Stunts |
| Crew | Kym Stys | Stunts |
| Crew | John Rottger | Stunts |
| Crew | Sara Holden | Stunts |
| Crew | Jeremy Fitzgerald | Stunts |
| Crew | Eli Roth | Thanks |
| Visual Effects | Craig Kuehne | VFX Artist |
