Chauncey Vibbard, often abbreviated as C. Vibbard or just Vibbard, was a steamboat built in New York in 1864 for passenger service on the Hudson River. The first steamboat built specifically for what later became the Hudson River Day Line, Chauncey Vibbard quickly established herself as the fastest steamboat on the river, if not the world, with a record run from New York to Albany in 1864. Her popularity was such that after only two years of service she was lengthened to accommodate more passengers.