Julia Warner Snow (August 30, 1863 – October 24, 1927) was an American botanist and was known in the scientific community for her work as a systematic phycologist. Snow was born in La Salle, Illinois, the third child of Norman G. Snow and Charlotte D. (née Warner). At the age of sixteen she left La Salle to enter , Adams, New York. After graduating in 1880, she returned home to live with her parents, then in 1884 matriculated to Cornell University in Ithaca, New York. While an undergraduate, she joined the Kappa Alpha Theta fraternity. When the Sigma Xi honor society was formed at Cornell in 1886, Julia joined along with fellow Theta Anna Botsford Comstock. She graduated with a Bachelor of Science degree in 1888.