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Simon the Zealot (Acts 1:13, Luke 6:15), also the Canaanite or the Canaanean (Matthew 10:4, Mark 3:18; Ancient Greek: Σίμων ὁ Κανανίτης; Coptic: ⲥⲓⲙⲱⲛ ⲡⲓ-ⲕⲁⲛⲁⲛⲉⲟⲥ; Classical Syriac: ܫܡܥܘܢ ܩܢܢܝܐ), was one of the apostles of Jesus. A few pseudepigraphical writings were connected to him, but Jerome does not include him in De viris illustribus written between 392 and 393 AD.
General info from Wikipedia.org