Lucy Ann Bishop Millington (June 10, 1825 – January 17, 1900) was an American self-taught botanist known for her discovery of Arceuthobium pusillum, a species of dwarf mistletoe that was damaging trees in New York State.

[1] Born Lucy Bishop, she was the second child in a wealthy merchant family that owned several businesses in New Russia (now Elizabethtown), a town in the Adirondack region of New York.

[1] Millington had a decades-long career in botany; her first notable publication was the 1871 discovery of A.

[3] She proceeded to publish a number of articles in popular science and contributed extensively to herbaria in New York.

[1] She functioned as a mentor to Liberty Hyde Bailey, whom she first met in 1876, when she was already established and he an eighteen-year-old student interested in botany.