[[Sega]]'s flagship franchise, making its debut in 1991. Sonic games are chiefly high-speed platforming games where the titular hedgehog stops his nemesis, Dr. Eggman, from taking over the world. Created as Sega’s rival to [[Mario]] of [[Nintendo]], the series skyrocketed to popularity. 

h4. Characters
h6. Recurring characters
* [[Amy Rose]]
* [[Big the Cat]] and [[Froggy (sonic)|]]
* [[Blaze the Cat]]
* [[Charmy Bee]]
* [[Cream the Rabbit]] and [[Cheese (sonic)|]]
* [[Dr. Eggman]] (a.k.a. Dr. Ivo Robotnik)
* [[E-123 Omega]]
* [[Espio the Chameleon]]
* [[Knuckles the Echidna]]
* [[Metal Sonic]]
* [[Orbot]] and [[Cubot]]
* [[Tails (Sonic)|Miles "Tails" Prower]]
* [[Rouge the Bat]]
* [[Shadow the Hedgehog]]
* [[Silver the Hedgehog]]
* [[Sonic the Hedgehog]]
* [[Vector the Crocodile]]

h6. Minor characters
* [[Antoine D'Coolette]]
* [[Ariem_(sonic)|]]
* [[Avatar (sonic_forces)|]]
* [[Bark the Polar Bear]]
* [[Bean the Dynamite]]
* [[Belle the Tinkerer]]
* [[Biolizard]]
* [[Black Doom]]
* [[Bocoe]]
* [[Bokkun (sonic_x)|]]
* [[Breezie the Hedgehog]]
* [[Bunnie Rabbot]]
* [[Caliburn (sonic)|]]
* [[Captain Whisker]]
* [[Chao (Sonic)|]]
* [[Chaos (Sonic)|]]
* [[Chip (Sonic)|]]
* [[Christopher Thorndyke]]
* [[Chocola (sonic)|]]
* [[Commander (Sonic)|]]
* [[Conductor (the_murder_of_sonic_the_hedgehog)|]]
* [[Conductor's Wife (the_murder_of_sonic_the_hedgehog)|]]
* [[Cosmo (sonic)|]]
* [[Dark Gaia]]
* [[Decoe]]
* [[Dr. Starline]]
* [[E-101 Beta]]
* [[E-102 Gamma]]
* [[Eclipse the Darkling]]
* [[Eggman Nega]]
* [[Emerl (Sonic)|]]
* [[Erazor Djinn]]
* [[Fang the Sniper]]
* [[Fiona Fox]]
* [[Gardon (sonic)|]]
* [[Gemerl]]
* [[Gerald Robotnik]]
* [[Geoffrey St. John]]
* [[Grounder (adventures_of_sonic_the_hedgehog)|]]
* [[Heavy Gunner (sonic)|]]
* [[Heavy King]]
* [[Heavy Magician]]
* [[Heavy Rider]]
* [[Heavy Shinobi]]
* [[Honey the Cat]]
* [[Iblis (sonic)|]]
* [[Infinite (Sonic)|]]
* [[Ixis Naugus]]
* [[Jet the Hawk]]
* [[Jewel the Beetle]]
* [[Johnny (sonic)|]]
* [[Kitsunami the Fennec]]
* [[Koco (sonic)|]]
* [[raa_(sonic)|Lah]]
* [[Lanolin the Sheep]]
* [[Lumina Flowlight]]
* [[Lyric the Last Ancient]]
* [[Maddie Wachowski]]
* [[Madonna Garnet]]
* [[Manic the Hedgehog]]
* [[Maria Robotnik]]
* [[Marine the Raccoon]]
* [[Mecha Sonic MkI]]
* [[Mecha Sonic MkI (8-bit)]]
* [[Mecha Sonic MkII]]
* [[Mephiles the Dark]]
* [[Merlina (sonic)|]]
* [[Metal Knuckles]]
* [[Mighty the Armadillo]]
* [[Mimic the Octopus]]
* [[Mina Mongoose]]
* [[Molly (sonic_x)|]]
* [[Nega-Mother Wisp]]
* [[Nicole the Holo-Lynx]]
* [[Omochao]]
* [[Pachacamac (sonic)|]]
* [[President (sonic)|]]
* [[Princess Elise the Third]]
* [[Professor Pickle]]
* [[Ray the Flying Squirrel]]
* [[Rotor the Walrus]]
* [[Rough the Skunk]]
* [[Sage (sonic)|]]
* [[Sally Acorn]]
* [[Sara (sonic)|]]
* [[Scratch (adventures_of_sonic_the_hedgehog)|]]
* [[Scourge the Hedgehog]]
* [[Shade the Echidna]]
* [[Shahra]]
* [[gawain_(sonic)|Sir Gawain]]
* [[galahad_(sonic)|Sir Galahad]]
* [[lamorak_(sonic)|Sir Lamorak]]
* [[lancelot_(sonic)|Sir Lancelot]]
* [[percival_(sonic)|Sir Percival]]
* [[Sonia the Hedgehog]]
* [[Sonic Man]]
* [[Sticks the Badger]]
* [[Storm the Albatross]]
* [[Su (sonic)|]]
* [[Surge the Tenrec]]
* [[Tails Doll]]
* [[Tangle the Lemur]]
* [[The End (Sonic_frontiers)|]]
* [[Tiara Boobowski]]
* [[Tikal the Echidna]]
* [[Tom Wachowski]]
* [[Topaz (sonic)|]]
* [[Train (the_murder_of_sonic_the_hedgehog)|]]
* [[Trip the Sungazer]]
* [[Tumble the Skunk]]
* [[Uh (sonic)|]]
* [[pink-haired_girl_(sonic)|Unnamed Pink-haired Girl]]
* [[Vanilla the Rabbit]]
* [[Void (sonic)|]]
* [[Wave the Swallow]]
* [[Whisper the Wolf]]
* [[Wisp (Sonic)|]]
* [[Yacker the Wisp]]
* [[Zavok (sonic)|]]
* [[Zazz]]
* [[Zeena]]
* [[Zik]]
* [[Zomom]]
* [[Zor (sonic)|]]

h6. Fanmade/meme characters
* [[Coldsteel the Hedgehog]]
* [[Eggette]]
* [[Eggmaam]]
* [[Sanic]]
* [[Sonic.EXE]]
* [[Sonichu]]
* [[Ugandan Knuckles]]
* [[Ugly Sonic]]

h4. Games
h6. Main
* [[Sonic the Hedgehog (classic)]]
** [[Sonic the Hedgehog 1|Sonic the Hedgehog]] (1991)
** [[Sonic the Hedgehog 2]] (1992)
** [[Sonic CD]] (1993)
** [[Sonic the Hedgehog 3]] (1994)
** [[Sonic & Knuckles]] (1994)
* [[Sonic Adventure]] (1998)
* [[Sonic Adventure 2]] (2001)
* [[Sonic Heroes]] (2003)
* [[Shadow the Hedgehog (game)|Shadow the Hedgehog]] (2005)
* [[Sonic the Hedgehog (2006)]]
* [[Sonic Unleashed]] (2008)
* [[Sonic the Hedgehog 4]] (2010)
* [[Sonic Colors]] (2010)
* [[Sonic Generations]] (2011)
* [[Sonic Lost World]] (2013)
* [[Sonic Mania]] (2017)
* [[Sonic Forces]] (2017)
* [[Sonic Frontiers]] (2022)
* [[Sonic Superstars]] (2023)

h6. Spin-off
* SegaSonic the Hedgehog (1993)
* [[Dr. Robotnik's Mean Bean Machine]] (1993)
* Sonic Spinball (1994)
* Sonic Drift (1994)
* [[Sonic Triple Trouble]] (1994)
* Sonic Drift 2 (1995)
* [[Knuckles' Chaotix]] (1995)
* [[Sonic the Fighters]] (1996)
* [[Sonic 3D: Flickies' Island]] (1996)
* [[Sonic R]] (1997)
* Sonic Advance (2001)
* Sonic Advance 2 (2002)
* [[Sonic Advance 3]] (2004)
* [[Sonic Battle]] (2004)
* [[Sonic Rush]] (2005)
* [[Sonic Riders]] (2006)
* [[Sonic Rivals]] (2006)
* [[Sonic and the Secret Rings]] (2007)
* [[Sonic Rush Adventure]] (2007)
* Sonic Rivals 2 (2007)
* Sonic Riders: Zero Gravity (2008)
* [[Sonic Chronicles: The Dark Brotherhood]] (2008)
* [[Sonic and the Black Knight]] (2009)
* Sonic & Sega All-Stars Racing (2010)
* [[Sonic Free Riders]] (2010)
* [[Sonic & All-Stars Racing Transformed]] (2012)
* [[Sonic Dash]] (2013)
* [[Sonic Boom (series)|Sonic Boom]] (2014)
* [[Mario & Sonic at the Rio 2016 Olympic Games]] (2016)
* [[Sonic Forces: Speed Battle]] (2017)
* [[Team Sonic Racing]] (2019)
* [[Sonic Speed Simulator]] (2022)
* [[The Murder of Sonic the Hedgehog]] (2023)
* [[Sonic Dream Team]] (2023)
* [[Sonic Rumble]] (2024)
h4. Adaptations

h6. TV and Anime
* [[Adventures of Sonic the Hedgehog]] (1993)
* [[Sonic the Hedgehog (SatAM)]] (1993)
* [[Sonic the Hedgehog (OVA)]] (1996)
* [[Sonic Underground]] (1999)
* [[Sonic X]] (2003)
* Sonic Boom (2014)
* [[Sonic Mania Adventures]] (2018)
* [[Sonic the Hedgehog (film)]] (2020)
* [[Sonic the Hedgehog 2 (film)]] (2022)
* [[Sonic Prime]] (2022)
* Knuckles (TV Show) (2024)
* [[Sonic the Hedgehog 3 (film)]] (2024)

h6. Comics
* [[Sonic the Hedgehog (manga)|]] (Shogakukan)
* [[Sonic the Comic]] (Fleetway Editions)
* [[Sonic the Hedgehog (Archie Comics)|]] ([[Archie Comics]])
* [[Sonic the Hedgehog (IDW)|]] (IDW Publishing)

h4. Related tags
* [[Chaos Emerald]]
* [[Chili Dog]]
* [[Death Egg]]
* [[Green Hill Zone]]
* [[Master Emerald]]
* [[Ring (sonic)|]]
* [[Soap Shoes]]
* [[Sol Emerald]]
* [[Sonic Adventure pose]]
* [[Space Colony ARK]]
* [[Werehog]]

h4. External links
* "Official website":[https://www.sonicthehedgehog.com]
* "Sonic Channel":[http://sonic.sega.jp/SonicChannel/index.html]
* "Wikipedia: Sonic the Hedgehog franchise":[https://en.wikipedia.org/wiki/Sonic_the_Hedgehog]
ソニック・ザ・ヘッジホッグ ソニック ソニック(ゲーム) SonicTheHedgehog sonicthehedgehog オリソニ Sonic_the_Hedgehog Sonic STH 索尼克 sonicpict