Swimming at the 2016 Summer Olympics – Women's 200 metre individual medley

The women's 200 metre individual medley event at the 2016 Summer Olympics took place on 8–9 August at the Olympic Aquatics Stadium.

Another medley double happened for the sixth straight time, as Hungary's Katinka Hosszú pulled away from a more fearsome field to collect her third individual Olympic gold at these Games. Leading from the start, she threw down a gold-medal time in 2:06.58 to establish a new Olympic record, and to hold off Great Britain's Siobhan-Marie O'Connor by three tenths of a second. Unable to catch the Hungarian towards a sprint finish, O'Connor produced a new British record of 2:06.88 to take home the silver. Meanwhile, U.S. swimmer Maya DiRado added a bronze to her runner-up prize from the 400 m individual medley three days earlier with a time of 2:08.79, edging out her teammate Melanie Margalis (2:09.21) to fourth by almost half a second.

Australia's Alicia Coutts, silver medalist from London 2012, culminated her Olympic career with a fifth-place time in 2:10.88, and was shortly followed in sixth by Canadian swimmer Sydney Pickrem (2:11.22). Russia's Viktoriya Andreeva (2:12.28), and defending gold medalist Ye Shiwen of China (2:13.56) closed out the field.

Hosszú also posted an Olympic record in 2:07.45 to lead all swimmers on the morning prelims, clipping 0.12 seconds off the mark set by Ye Shiwen in London four years earlier.