Martin Pring (1580–1626) was an English explorer from Bristol, England who in 1603 at the age of 23 was captain of an expedition to North America to assess commercial potential; he explored areas of present-day Maine, New Hampshire, and Cape Cod in Massachusetts. In the process, he named what is now Plymouth Harbor 'Whitson Bay' and a nearby hill 'Mount Aldworth' after the two Bristol merchants who provided him with ships and supplies. The harbour was later renamed by the Pilgrim fathers.