Fahnestock may refer to:

• Clarence Fahnestock State Park, a park in Putnam and Dutchess counties, New York, US
• Fahnestock clip, an early type of spring clamp electrical terminal for connections to bare wires
• Fahnestock Glacier, a glacier in Antarctica
• Harris C. Fahnestock (1835–1914), American investment banker

This disambiguation page lists articles associated with the title Fahnestock.
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