Julia Louise Bienias is an American biostatistician known for her highly-cited publications on Alzheimer's disease.
Bienias completed her Ph.D. in 1993 at the Harvard School of Public Health. Her dissertation was Design and Analysis of Time-to-Pregnancy Studies, and was supervised by Louise M. Ryan.She has worked for the United States Census Bureau, for the Rush University Medical Center, and for the Nielsen Corporation.
Bienias was president of the Caucus for Women in Statistics for the 2005 term.She is an Elected Member of the International Statistical Institute, and was named a Fellow of the American Statistical Association in 2021.