Sonic X may refer to:
Media[]
- Sonic X, an anime series originally broadcasted from 2003 to 2006.
- Sonic X (comic series), a comic series published by Archie Comics.
- Sonic X (novel series), a novel series published by Grosset & Dunlap.
Miscellaneous[]
- "Sonic X" (theme), a song from the Sonic X anime series.
- Sonic X (Leapster), a 2005 video game for the Leapster.
- Society for Observing and Neutralizing Inter-dimensional Creatures and Xenomorphs (acronym S.O.N.I.C.X.), a group from the Sonic X comic series published by Archie Comics.