Swimming at the 1964 Summer Olympics – Women's 400 metre individual medley

Swimming at the 1964 Summer Olympics
Freestyle
100 m	men	women
400 m	men	women
1500 m	men
Backstroke
100 m		women
200 m	men
Breaststroke
200 m	men	women
Butterfly
100 m		women
200 m	men
Individual medley
400 m	men	women
Freestyle relay
4×100 m	men	women
4×200 m	men
Medley relay
4×100 m	men	women

The women's 400 metre individual medley event at the 1964 Summer Olympics took place on 15–17 October. This swimming event used medley swimming and this was the first time for this event in this distance for the women swimmers. Because an Olympic size swimming pool is 50 metres long, this race consisted of eight lengths of the pool. The first two lengths were swum using the butterfly stroke, the second pair with the backstroke, the third pair of lengths in breaststroke, and the final two were freestyle. Unlike other events using freestyle, swimmers could not use butterfly, backstroke, or breaststroke for the freestyle leg; most swimmers use the front crawl in freestyle events.

Medalists

Gold	Donna de Varona United States
Silver	Sharon Finneran United States
Bronze	Martha Randall United States

Results

Heats

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Final

Rank	Athlete	Country	Time	Notes
	Donna de Varona	United States	5:18.7	OR
	Sharon Finneran	United States	5:24.1
	Martha Randall	United States	5:24.2
4	Veronika Holletz	Germany	5:25.6
5	Linda McGill	Australia	5:28.4
6	Betty Heukels	Netherlands	5:30.3
7	Anita Lonsbrough	Great Britain	5:30.5
8	Márta Egerváry	Hungary	5:38.4