Swimming at the 2015 World Aquatics Championships – Women's 100 metre butterfly

The heats were held on 2 August at 09:30.[2]

Rank	Heat	Lane	Name	Nationality	Time	Notes
1	7	4	Sarah Sjöström	Sweden	56.47	Q
2	6	4	Jeanette Ottesen	Denmark	57.79	Q
3	5	5	Inge Dekker	Netherlands	57.82	Q
4	7	2	Lu Ying	China	57.84	Q
5	5	4	Katerine Savard	Canada	57.96	Q
6	6	7	Alexandra Wenk	Germany	58.05	Q
7	5	6	Kendyl Stewart	United States	58.06	Q
8	7	5	Emma McKeon	Australia	58.12	Q
9	7	1	An Se-hyeon	South Korea	58.24	Q, NR
10	6	5	Madeline Groves	Australia	58.31	Q
11	6	6	Chen Xinyi	China	58.34	Q, =WJ
12	7	7	Noemie Thomas	Canada	58.35	Q
13	7	8	Kimberly Buys	Belgium	58.36	Q, NR
14	6	3	Ilaria Bianchi	Italy	58.37	Q
15	7	0	Natsumi Hoshi	Japan	58.47	Q
16	5	3	Rachael Kelly	Great Britain	58.48	QSO
16	6	9	Farida Osman	Egypt	58.48	QSO, NR
18	5	1	Daynara de Paula	Brazil	58.59
19	5	2	Jemma Lowe	Great Britain	58.74
20	6	2	Claire Donahue	United States	58.77
21	6	1	Marie Wattel	France	58.84
22	6	8	Katarína Listopadová	Slovakia	58.87
23	4	5	Anna Ntountounaki	Greece	58.90
24	7	9	Beryl Gastaldello	France	59.06
25	5	8	Evelyn Verrasztó	Hungary	59.09
26	5	7	Nataliya Lovtsova	Russia	59.11
27	5	9	Danielle Villars	Switzerland	59.21	NR
28	5	0	Anna Polyakova	Russia	59.42
29	4	8	Sze Hang Yu	Hong Kong	59.72
30	4	4	Park Jin-young	South Korea	59.74
31	6	0	Daiene Dias	Brazil	59.75
32	7	6	Elena Di Liddo	Italy	59.78
33	4	3	Judit Ignacio Sorribes	Spain	59.87
34	4	7	Emilia Pikkarainen	Finland	1:00.16
34	4	1	Lucie Svěcená	Czech Republic	1:00.16
36	4	9	Quah Ting Wen	Singapore	1:00.30
37	3	4	Jessica Camposano	Colombia	1:00.42
38	3	5	Isabella Páez	Venezuela	1:00.58	NR
39	4	0	Nastja Govejšek	Slovenia	1:01.15
40	3	7	Ana Monteiro	Portugal	1:01.53
41	3	3	Marie Meza	Costa Rica	1:01.59
42	3	2	Jasmine Al-Khaldi	Philippines	1:02.37
43	3	6	Jóhanna Gústafsdóttir	Iceland	1:02.43
44	3	8	Sotiria Neofytou	Cyprus	1:02.83
45	4	6	Sharo Rodríguez	Mexico	1:02.97
46	4	2	Laura Arroyo	Mexico	1:03.18
47	2	7	Felicity Passon	Seychelles	1:03.29
48	3	9	Amina Kajtaz	Bosnia and Herzegovina	1:03.39
49	1	4	Noel Borshi	Albania	1:03.65
50	3	1	Monalisa Lorenza	Indonesia	1:03.85
51	3	0	Talita Baqlah	Jordan	1:04.23
52	2	5	Jannah Sonnenschein	Mozambique	1:04.48
53	2	4	Estefania Urzua	Chile	1:04.64
54	2	2	Dalia Torrez Zamora	Nicaragua	1:04.75
55	2	1	Emily Muteti	Kenya	1:04.91
56	2	6	Caylee Watson	Virgin Islands	1:05.70
57	2	3	Ana Nobrega	Angola	1:05.84
58	2	8	Lara Butler	Cayman Islands	1:06.10
59	2	9	Alsu Bayramova	Azerbaijan	1:06.79
60	1	3	María Ribera	Bolivia	1:07.09
61	1	6	Amarah Phillip	British Virgin Islands	1:08.60
62	1	5	Tegan McCarthy	Papua New Guinea	1:08.82
63	2	0	Choe Su-rim	North Korea	1:08.98
64	1	1	Bo-Anne Bos	Curaçao	1:12.43
65	1	2	Johanna Umurungi	Rwanda	1:13.14
66	1	0	Dirngulbai Misech	Palau	1:14.05
67	1	7	Nooran Ba Matraf	Yemen	1:14.43
68	1	9	Charissa Panuve	Tonga	1:16.48
69	1	8	Nada Arkaji	Qatar	1:17.30
	7	3	Liliána Szilágyi	Hungary	DNS

The swim-off was held at 11:56.[3]

Rank	Lane	Name	Nationality	Time	Notes
1	4	Rachael Kelly	Great Britain	58.17	Q
2	5	Farida Osman	Egypt	58.22	NR

The semifinals were held on 2 August at 17:32.[4]

The final was held on 3 August at 17:40.[5]

Sjöström wins gold with a world record

Rank	Lane	Name	Nationality	Time	Notes
	4	Sarah Sjöström	Sweden	55.64	WR
	5	Jeanette Ottesen	Denmark	57.05
	3	Lu Ying	China	57.48
4	2	Emma McKeon	Australia	57.67
5	6	Katerine Savard	Canada	57.69
6	7	Chen Xinyi	China	57.85
7	8	Noemie Thomas	Canada	57.94
8	1	Alexandra Wenk	Germany	58.22