Locrian may refer to:

• Locrians, an ancient Greek ethnic group
  • Locrian Greek, ancient Greek dialect spoken by the Locrians
  • Locris, the territory of the Locrians

In music:

• Locrian mode, a musical mode or diatonic scale
• Major Locrian scale, the scale obtained by sharpening the second and third degrees of the locrian mode
• Locrian ♮2 or Half diminished scale, a musical scale commonly used in jazz and some rock
• Locrian (band), Chicago-based experimental music duo

This disambiguation page lists articles associated with the title Locrian.
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