Sonic the Hedgehog may refer to:
- Sonic the Hedgehog (character), the Blue Blur himself.
- Sonic the Hedgehog (16-bit), the first Sonic video game, released on the Mega Drive in 1991.
- Sonic the Hedgehog (8-bit), Sonic's first video game outing on the Master System and Game Gear, also released in 1991.
- Sonic the Hedgehog (2006), a Sonic video game for the Xbox 360 and PS3 released in 2006.
- Sonic the Hedgehog (TV series), an animated television series created by DiC, often referred to as "SatAM".
- Sonic the Hedgehog (comic series), a comic book series publised by Archie Comics.
- Sonic the Hedgehog (Archie character), going into more detail about Sonic's portrayal specifically in the Archie comics.
- Sonic the Hedgehog (Sonic the Comic), the version of the character from UK's Sonic the Comic.
- Sonic the Hedgehog series, the whole series of video games involving Sonic.