Katharine Blunt (May 28, 1876 – July 29, 1954) was an American chemist, professor, and nutritionist who specialized in the fields of home economics, food chemistry and nutrition.

In 1913, Blunt left Vassar again, this time for a position as an assistant professor in the department of home economics in the College of Education at the University of Chicago.

[8] Blunt was concerned that home economics would not become an established profession, so she worked to make it an appropriate subject of instruction and to plan a scientific curriculum for training professionals.

[10] In 1928, the AHEA observed that Blunt's administration had enhanced the quality of graduate work in the field, and that her own devotion to research had provided an invaluable example to students.

During her career Blunt published many articles on nutrition and food chemistry in technical journals, and she served as editor of the University of Chicago's Home Economics Series.

The series of 4-page publications, called the United States Food Leaflets, were co-written by Blunt, Florence Powdermaker and Louise Pritchett.

The leaflets included recipes and emphasized food choices and the preparation of an adequate diet; among the first titles were "Do You Know Corn Meal?"

One aim of the series was to "provide a large amount of data fundamental to extension teaching and other popular instruction".

In 1921, Blunt was elected as a member of the Kappa Mu Sigma, a women’s graduate chemistry fraternity founded in 1920 at the University of Chicago.

[16] In the fall of 1921, Blunt traveled with three others from the society to install a second chapter of Kappa Mu Sigma at Columbia University in New York.

[17] This society was chosen to canvas the University of Chicago for funds, as part of a nation-wide campaign by women, that went toward the purchase of a gram of radium for Madame Curie for her research back in Paris.

[20] When Blunt died, the college was bequeathed her residence at 38 Glenwood Avenue, an apartment building at 640 Williams Street, and a portion of the residue of her estate.