Adele Marion Fielde (March 30, 1839 – February 23, 1916)[1] was a social activist, Baptist missionary, scientist, and writer.

[2][3] Adele Fielde was born in East Rodman, New York on March 30, 1839.

[4] Fielde also studied biology for two years at the Philadelphia Academy of Natural Sciences, but did not receive a formal degree.

[7] In 1894, after the defeat of the women's suffrage amendment to the New York State constitution, Fielde was one of six prominent suffragists who founded the League for Political Education.

[4] She carried out her myrmecological research at Woods Hole, Massachusetts, one of the few institutions that was sympathetic to female students at that time.