Eva Armstrong (December 22, 1877, in Key West, Florida - May 10, 1962) was an American secretary, librarian, curator, and historian of science.

Armstrong attended Atlantic City High School and was then a secretary, first at the Book Lover's Agency and then at the University of Pennsylvania beginning in 1906.

[5] From 1909-1920 Armstrong was secretary of the board for the chemistry faculty at the University of Pennsylvania, chaired by Edgar Fahs Smith.

[1][7] After Smith died in 1928, his widow Margie A.Smith bequeathed the collection to the University of Pennsylvania and appointed Eva Armstrong as curator, a position in which she remained from 1929[1] until her retirement in 1949.

[1][12][13] "Miss Armstrong was chosen not for activity in a single field, but rather for the stimulation, inspiration and assistance that she contributed to the history of chemistry over a long period of years.