DJ Patil, full name Dhanurjay "DJ" Patil, is an American data scientist and executive known for his significant contributions to the field of data science and big data analytics. He was born in 1974 in India and later moved to the United States. Patil holds a Ph.D. in applied mathematics from the University of Maryland, College Park. He gained widespread recognition during his tenure as the Chief Data Scientist of the United States Office of Science and Technology Policy under the Obama administration, where he served from 2015 to 2017. During his time in this position, Patil played a crucial role in promoting the use of data-driven decision-making across various governmental agencies.