Wilhelmine "Minnie" Marie Enteman Key (February 22, 1872 – January 31, 1955) was an American geneticist.

She was the first woman to gain a PhD in zoology from the University of Chicago, where she studied coloration in paper wasps.

[7] Later in her college career, she joined the honor society Phi Beta Kappa.

[1] She earned the Latin honor magna cum laude for her dissertation work.

[12] After she obtained her AB, Key worked as an assistant in German and biology at Green Bay High School from 1894 to 1898.

[1] Afterwards, she became the head of the German and Nature Study department at the New Mexico Normal University from 1903 to 1904.

[21] Some of her time was spent on the advisory board of a new arts center in Florida built by the Woman's History Foundation.

[47][48] Key died of a cerebral hemorrhage on January 31, 1955, while on a visit to see family in Everett, Washington.