Sharon Mosher is an American geologist. She did her undergraduate work at University of Illinois Urbana-Champaign. After earning an MSc from Brown University, she returned to the University of Illinois to get her PhD in Geology in 1978. Since 2001 she has held the William Stamps Farish Chair at University of Texas, and, since 2009 she has served as the dean of the Jackson School of Geosciences at Texas. In 2013 she became the president of the American Geosciences Institute.