• Grand Prize Winner: Thomas Bouve (Thomas's Answer)
  (who in 2020 won Best Technical Answer)
• Most Creative Answer: Jai Minton (Jai's Answer)
  (who created a 3D video game based on the Holiday Hack Challenge itself)
• Runner-Up Most Creative Answer: Joel Tan
• Best Technical Answer: David Forsythe (David's Answer)
• Runner-Up Best Technical Answer: Roger Johnsen

Honorable Mentions:

• Fabian Andre
• Pranshu Bajpai
• Barbie
• Jeff Beazley
• Mike Boyle
• Adam Coirazza
• CosmicHitman
• Michael Deibert
• Hack3dlazy
• Wendy Edwards
• eucrates
• Simon Roses Femerling
• William Fleisher
• geospider
• Bernhard Griener
• Christopher Henseler
• Tomoomi Iwata
• JariR
• janusz jasinski
• Anand Kanani
• Daniel Kaufmann
• Mitch Kerle
• yaron king
• Akvile Kiskis
• Pinja Koskinen
• Laura
• Link
• lolkatz
• Steven Maestas
• Patrick Malter
• Darryl Miles
• minispooner
• Mark Mulvaney
• Jason Navarrete
• Sven Bursch-Osewold
• Sebastian Perez
• Nivedan Rajasekar
• Chris Ruggieri
• Michael S
• Giuseppe Saturno
• Johann Schnagl
• Adam Snedden
• Glyn Snowden
• Stefan Soto
• Calle Svensson
• David Szili
• defyp and unikbyte
• Clayton VanTol
• Bryan Williams
• Lee Chong Yu

Super Honorable Mentions:

• Anand Kanani
• James Baldacchino
• R. Bastiaans
• Walter Belgers
• Michael Benedetti
• Olivier Bettan
• Blake Bourgeois
• Mike Boyle
• Brian Carrick
• Alberto Certo
• Matthew Ciantar
• Walid Daboubi
• Brian Davidson
• Paul DeCamp
• Nuttakorn Dhiraprayudti
• Miroslav Dimitrov
• eldiridge
• Jacob Elliott
• Jeshua Erickson
• fatsheep
• Dan Fedele
• Matthew Furtado
• John Goff
• ASHISH GUPTA
• Michael Hertrick
• Joe Kattner
• Nikola Knežević
• Ben Krueger
• kusuwada
• Xhelal Likaj
• George Mantakos
• Pasi Mäntynen
• James Mar
• Daniela Mariaschi and Massimo Mariaschi
• Wade Matistic
• Yannick Méheut
• Devesh Mitra
• Dan O'Connor
• Kyle Parrish
• Dale Perkel
• Dickson Quek
• Dan Roberts
• Shahne Rodgers
• Julian Runnels
• Jeroen Schijvenaars
• Jörg Schwarzwälder
• Mo Sharif
• Mike Shirley
• Matt Simmons
• Jason Sosnowsk
• Nate Thornton
• Cody Travis
• Justin Wylie

• Grand Prize Winner: Stanislav Nurilov
  
• Most Creative Answer: Jeremy Phillips
  
• Runner-Up Most Creative Answer: Mark Mulvaney and Mike Boyle
• Best Technical Answer: Thomas Bouve
• Runner-Up Best Technical Answer: Neal Eikenberry and Janusz Jasinski