Crust may refer to:

Geology and soil science

• Crust (geology), the outer solid layer of a planet
• Continental crust
• Oceanic crust
• Soil crust

Music

• Crust punk, a hardcore punk / extreme metal fusion
• Crust (band), a psychedelic Texas band
• Crust (EP), an EP by Brazilian metal band Sarcófago
• Crust (album), an album by Italian metal band Sadist

Medicine

• Crust (dermatology), a secondary skin lesion

Crust may also refer to

• In forest fires, crust is something that covers trees to slow the fire
• The outer layer of a loaf of bread

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