Ekai Kawaguchi (????, Kawaguchi Ekai) (February 26, 1866 – February 24, 1945) was a Japanese Buddhist monk, famed for his four journeys to Nepal (in 1899, 1903, 1905 and 1913), and two to Tibet (July 4, 1900–June 15, 1902, 1913–1915), being the first recorded Japanese citizen to travel in either country.