Hannah Nielsen (born 28 November 1987 in Adelaide, Australia) is the current head coach of the University of Michigan women’s lacrosse team. She was formerly the first women's lacrosse assistant coach at the University of Colorado. Originally from the Brighton Lacrosse Club in Adelaide (also the home club of Jen Adams), Nielsen played for the Northwestern University Wildcats, and won four national championships as a player. She was a three-time All-American, and is a winner of both the Tewaaraton Trophy and Honda Sports Award in her junior and senior seasons. She holds NCAA records for career assists, assists in a season, and assists in single game.