John Beavor-Webb (1849 - March 11, 1927) was an Irish-American naval architect. He was a designer of sailing yachts, notably the America's Cup challengers Genesta (1884) and Galatea (1885), before emigrating to the United States where he designed very large steamyachts like J.P. Morgan's Corsair II (1891) and Corsair III (1899).