Marta Krūmiņa-Vitrupe (March 29, 1908, in Vitrupe, Kreis Wolmar, Governorate of Livonia (now Limbaži Municipality, Latvia) as Marta Legzdiņa – February 6, 2010, in New York City, US) was a Latvian poet, writer and chess master who won the Latvian Chess Championship for women in 1941.
Married with playwright and poet Hugo Teodors Krūmiņš (1901–1990),[1] who was a member of the Latvian community of writers "Green Crow".
The early years of exile they conducted first in Germany, and in 1950 the family moved to United States in Cleveland.
In 1938, she won the women's chess championship of Vidzeme and participated in the Latvian Chess Championship for women, where she shared the first – third place with Elise Vogel and Emīlija Šmite, but after further competition remained in third place.
Such a record 100.0 percent result in the Latvian Chess Championship for women only repeated Dana Reizniece in 1999.