Natalie Wiegersma (born 7 January 1990, Hamilton) is a New Zealand swimmer who competes in the Women's 400m individual medley. At the 2012 Summer Olympics she finished 19th overall in the heats in the Women's 400 metre individual medley and failed to reach the final. She also competed in the women's 200 metre individual medley, again, not progressing beyond the first round.