Fahnestock

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