Hitachi may refer to:

• Hitachi, Ibaraki, Japan
• Hitachi province, former province of Japan
• Prince Hitachi and Princess Hitachi, members of the Japanese imperial family
• Hitachi (train), trains in Melbourne, Australia
• Hitachi Foundation, founded in the U.S. by Hitachi Ltd in 1985

Companies named Hitachi:

• Hitachi, Ltd., a group of companies, manufacturer of electric, electronic and engineering products
• Hitachi Works, the oldest member of the Hitachi group and ancestral home of Hitachi, Ltd.
• Hitachi Cable, independent spin-off of Hitachi Works
• Hitachi Canadian Industries Ltd. (HCI), an independent subsidiary of Hitachi, Ltd. located in Saskatoon, Canada
• Hitachi Construction Machinery (Europe), subsidiary of Hitachi, Ltd., now parent of Euclid Trucks
• Hitachi Data Systems, a subsidiary of Hitachi, with enterprise storage systems group based both in Japan and in Santa Clara, California, US
• Hitachi Global Storage Technologies, disk drive manufacturer, wholly owned subsidiary of Hitachi, Ltd.
• Hitachi Hatsukaze, aircraft engines built in Japan
• Hitachi Maxell Ltd., commonly known as Maxell, a separate Japanese electronics company

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