Sinopah (Ap'-ah-ki) (c. 1796-c. 1880) was a Blackfeet Confederacy woman married to interpreter Hugh Monroe.
Sinopah Mountain, located in Glacier National Park in the U.S. state of Montana, is named after her.
In 1820 she married Hugh "Rising Wolf" Monroe, a white trapper and interpreter who became part of the Blackfeet tribe.
During their marriage they were trappers and hunters in multiple places including the Canadian province of Saskatchewan, Fort Benton, Montana, and the area around Glacier National Park.
Family members reported that she died before 1880 but the exact date and place are unknown.