Swimming at the 2007 World Aquatics Championships – Women's 200 metre individual medley

The Women's 200m Individual Medley at the 2007 World Aquatics Championships took place on 25 March (prelims & semifinals) and the evening of 26 March (finals) at the Rod Laver Arena in Melbourne, Australia. 50 swimmers were entered in the event, of which 49 swam.

Existing records at the start of the event were:
 * World Record (WR): 2:09.72, WU Yanyan (China), 17 October 1997 in Shanghai, China.
 * Championship Record (CR): 2:10.41, Katie Hoff (USA), Montreal 2005 (25 July 2005)