Swimming at the 2007 World Aquatics Championships – Women's 4 × 200 metre freestyle relay

The Women's 4 × 200 m Freestyle Relay at the 2007 World Aquatics Championships took place on 29 March 2007 at the Rod Laver Arena in Melbourne, Australia. The top-12 finishers from this race qualified for the event at the 2008 Olympics. 25 teams were entered in the event; all swam.

The existing records when the event started were:
 * World Record (WR): 7:50.82, Germany (Dallmann, Samulski, Steffen, Liebs), 3 August 2006 in Budapest, Hungary.
 * Championship Record (CR): 7:53.70, USA (Coughlin, Hoff, Myers, Sandeno), Montreal 2005 (Jul.28.2005)