Constance Endicott Hartt (November 2, 1900 – December 21, 1984) was a U.S. botanist notable for her research on sugarcane.

[1] She taught at St. Lawrence University and Connecticut College.

She also worked as a botanist for the Hawaiian Sugar Planters' Association.

Hartt died in Hawaii in 1984 at the age of 84.

[2][3] This article about an American botanist is a stub.