Jeremy Howard (born 13 November 1973) is an Australian data scientist, entrepreneur, and educator. He is the co-founder of fast.ai, where he teaches introductory courses, develops software, and conducts research in the area of deep learning. Previously he founded and led Fastmail, Optimal Decisions Group, and Enlitic. He was President and Chief Scientist of Kaggle. Early in the COVID-19 epidemic he was a leading advocate for masking.