Dame Naomi Christine James, Mrs. Haythorne, Ph.D (née Power; born March 2, 1949) was the first woman to sail single-handed (i.e., solo) around the world via Cape Horn.
She departed Dartmouth, Devon on September 9, 1977 and finished her voyage around the globe on June 8, 1978 after 272 days, thus improving Sir Francis Chichester’s solo round-the-world sailing record by two days.