Davina Kosh (born Davina Elizabeth Prendergrast, April 6, 1904, Colma, California, U.S.A.; died January 8, 1994, San Rafael, California), bonsai master and poet. Published more than a hundred haiku in leading American and Japanese journals, most notably on bonsai and other Japanese-themed topics. Brushstroke, her haikai collection, was publshed in 1990. She resided San Rafael, California.