The Herreshoff Manufacturing Company was an American boatbuilding company founded in 1878 by brothers Nat Herreshoff and John Herreshoff in Bristol, Rhode Island. The company became renowned for its innovative designs and high-quality yachts, particularly in the field of racing sailboats. Over the years, the Herreshoff Manufacturing Company produced numerous successful vessels, including the famous America's Cup defenders. The company played a significant role in advancing yacht design and construction techniques, contributing to the rich maritime heritage of the United States.