Mona May Karff

Mona May Karff
CountryUnited States
Born(1908-10-20)October 20, 1908
Bessarabia, Russia
DiedJanuary 10, 1998(1998-01-10) (aged 89)
Manhattan, New York, United States
TitleWoman International Master (1950)
Peak rating2135 (January 1990)

Mona May Karff (née Minna Ratner; 20 October 1908 10 January 1998) was an American chess player. She dominated U.S. women's chess in the 1940s and early 1950s: she held seven U.S. Women's Chess Champion titles and four consecutive U.S. Open titles.