The women's duet event at the 2000 Summer Olympics in Sydney, Australia, took place inside the Sydney International Aquatic Centre from 24 to 26 September.

[1] The preliminary phase consisted of a technical routine and a free routine.

The scores from the two routines were added together and the top 12 duets qualified for the final.

[1] The final consisted of one free routine, the score from the final free routine was added to the score from the preliminary technical routine to decide the overall winners.

[1] All times are Australia Standard Time (UTC+11)