Harvester can refer to:

• Bioinformatic Harvester, Bioinformatic metasearch engine at Karlsruhe Institute of Technology
• Combine harvester, a machine used to harvest grain
• Harvester (forestry), a type of heavy vehicle employed in cut-to-length logging of trees
• Harvester (computer game), a computer adventure game
• A tool that can be configured to crawl a specified website on a regular basis.
• Harvester (restaurant), a British restaurant chain
• Harvester, Missouri an unincorporated community in St. Charles County
• Harvester, previous name of Burr Ridge, Illinois
• International Harvester, was an agricultural machinery company

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