Kate Brousseau (April 24, 1862 – July 8, 1938) was an American professor and researcher on mental hygiene, chair of the Psychology Department at Mills College.

[10] Brousseau served in the French Army in World War I from 1917 to 1919, as "directrice des Foyers du Soldat" (director of a soldiers' home), stationed on Lorraine Front; she was with the French Army of Occupation in Germany and in devastated districts of Northern France.

[1] At the end of the war Brosseau helped to rehabilitate traumatized soldiers and was assistant to surgeon Dr. E. Toulouse in examining street railway employees.

[1][11] Brousseau was awarded the Medaille Commemorative Francaise de la Grand Guerre by the French Government in 1920.

[1] Brousseau is the author of L'éducation des nègres aux États-Unis (1904) and Mongolism: A Study of the Physical and Mental Characteristics of Mongolian Imbeciles (1928).