Katrina Jane Sharples is a New Zealand biostatistician. She is full professor in the Department of Mathematics and Statistics at the University of Otago, and head of statistics at Otago. Sharples completed a Ph.D. in statistics at the University of Washington in 1989. Her dissertation, Regression Analysis of Correlated Binary Data, was supervised by Norman Breslow. Her research has included work on cattle-based spreading of leptospirosis in Tanzania, and a study of tuberculosis in Indonesia.