The women's 200 metre breaststroke event, included in the swimming competition at the 1948 Summer Olympics, took place from 30 July to 3 August at the Empire Pool.

In this event, swimmers covered four lengths of the 50-metre (160 ft) Olympic-sized pool employing the breaststroke.

It was also the first appearance of the event since the outbreak of World War II.

[1] Prior to this competition, the existing world and Olympic records were: The following records were established during the competition: Hungarian Éva Székely set her Olympic record in the event using the butterfly stroke, which was allowed at the time.

The technique was disallowed in the 200m breaststroke event that year and in all future Olympic Games.