Cathy O'Neil

Catherine Helen O'Neil (born 1972) is an American mathematician, data scientist, and author. She is the author of the New York Times best-seller Weapons of Math Destruction, and opinion columns in Bloomberg View. O'Neil was active in the Occupy movement. received a Ph.D. in mathematics from Harvard University in 1999, She left academia in 2007, and worked for four years in the finance industry. She worked as an analyst at D. E. Shaw & Co. After becoming disenchanted with the world of finance, O'Neil became involved with the Occupy Wall Street movement,

O'Neil operates the blog mathbabe.org and is a contributor to Bloomberg View.

Her first book, Doing Data Science, was written with Rachel Schutt and published in 2013. and became a New York Times best-seller. and is on the board of the nonprofit ORCAA Collaborative Expert Assistance Network (OCEAN).

Awards In 1993 O'Neil was awarded the Alice T. Schafer Prize from the Association for Women in Mathematics and in 2019 she won the MAA's Euler Book Prize for her book Weapons of Math Destruction.

Personal life O'Neil lives in Massachusetts and has three sons.