Omega (disambiguation)

Omega may refer to:
 * Omega (XS1) - a track on the Xenosaga Original Soundtrack
 * Omega (cutscene) - a cutscene in Xenosaga Episode III
 * omega (XS3 music) - a track from the Music of Xenosaga Episode III
 * omega (instrumental) - a version of the above track with no vocals
 * - a version of the above track with different instrumentation
 * Ω System - the area in Xenosaga Episode II
 * Omega System (music) - the music that plays there
 * Colony Omega - the Colony in Xenoblade Chronicles 3