This is a list of bad games in the Sonic the Hedgehog franchise.

Back in the 90s, Sonic the Hedgehog was the mascot for the Sega Genesis, creating some of the best games for the system and helped grant the Genesis a fanbase. However, after Sega dropped out of the console wars, Sonic found himself on other companies' systems, including his longtime rival Nintendo. After his shift to 3D, a few of the series' games have ranged from decent to awful.