Spray was the sailboat used by 19th-century Canadian-American seaman and author Joshua Slocum during the first solo circumnavigation of the Earth. Slocum departed Boston Harbor in the 36-foot-9-inch vessel on April 24, 1895 and returned to Newport, Rhode Island on June 27, 1898, becoming the first person known to have sailed around the world alone.

Joshua Slocum was the first person to sail single-handedly around the world. He was a Nova Scotian-born, naturalised American seaman and adventurer, and a noted writer. In 1900 he wrote a book about his journey, Sailing Alone Around the World, which became an international best-seller. He disappeared in November 1909 while aboard his boat, the Spray.