Error may refer to:

• Error, a mistake.
• Error coram nobis, a type of writ.
• Postage stamp error
• Error coin
• Error, a character from Zelda 2: Adventure of Link

Science

• Approximation error, error in scientific measurements
• Standard error (statistics)
• Errors and residuals in statistics
• Error message, a computer error message
• Refractive error

Music

• Error (band), an Electro-Punk-Hardcore band from Los Angeles, California, USA.
• Errors (band), a Post-Electro four piece band from Glasgow, UK.

Sport

• Error (baseball), a baseball concept.