Locrian

 ( Language And Nationality Disambiguation Pages ) 

• 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