The Sonic the Hedgehog 10th Anniversary was a celebration throughout 2001 of ten years since the start of the Sonic the Hedgehog series with the release of Sonic the Hedgehog in 1991. It was the first major Sonic anniversary, which was associated with the release of various merchandise and games, and it was followed by the fifteenth anniversary.
- Sonic the Hedgehog Birthday Pack
- 10th Anniversary Dreamcast
- Sonic polystone statue, silver ring and crystal cube from Sonic Factory
- 10th Anniversary wine glass
- 10th Anniversary Zippo lighter
- Sonic Adventure 2 plush toys by Sega Prize!
- Sonic Premium Birthday Party