Co-Co may refer to:

• Co-Co locomotive, a classification for a locomotive wheel arrangement with two six-wheeled bogies with all axles powered, with a separate motor per axle
• Co-Co (band), a British pop group
• "Co-Co" (Sweet song), 1971
• Co-co! Magazine, a Hong Kong magazine
• Abbreviation for Contingent convertible bond

• Coco (disambiguation)
• Cocoa (disambiguation)
• Koko (disambiguation)
• Coca (disambiguation)

This disambiguation page lists articles associated with the title Co-Co.
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