| Event: | Men's 200 metre butterfly |
| Championship: | 2015 World Aquatics Championships |
| Dates: | 4 August (heats and semifinals) 5 August (final) |
| Competitors: | 40 |
| Nations: | 33 |
| Win Value: | 1:53.48 |
| Gold: | László Cseh |
| Goldnoc: | HUN |
| Silver: | Chad le Clos |
| Silvernoc: | RSA |
| Bronze: | Jan Świtkowski |
| Bronzenoc: | POL |
| Prev: | 2013 |
| Next: | 2017 |
The Men's 200 metre butterfly competition of the swimming events at the 2015 World Aquatics Championships was held on 4 August with the heats and the semifinals and 5 August with the final.[1]
Prior to the competition, the existing world and championship records were as follows.
The heats were held at 10:15.[2]
| Rank | Heat | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|---|
| 1 | 3 | 4 | 1:53.71 | Q | |||
| 2 | 3 | 3 | 1:54.47 | Q, NR | |||
| 3 | 4 | 4 | 1:55.60 | Q | |||
| 4 | 4 | 3 | 1:55.78 | Q | |||
| 5 | 2 | 5 | 1:55.83 | Q | |||
| 6 | 2 | 3 | 1:55.86 | Q | |||
| 7 | 4 | 5 | 1:55.97 | Q | |||
| 8 | 4 | 2 | 1:56.05 | Q | |||
| 9 | 3 | 5 | 1:56.12 | Q | |||
| 10 | 2 | 7 | 1:56.23 | Q, NR | |||
| 11 | 3 | 7 | 1:56.29 | Q | |||
| 12 | 4 | 6 | 1:56.33 | Q | |||
| 13 | 3 | 6 | 1:56.85 | Q | |||
| 14 | 2 | 4 | 1:56.92 | Q | |||
| 2 | 6 | Q | |||||
| 16 | 4 | 8 | 1:57.28 | Q | |||
| 17 | 2 | 0 | 1:57.63 | ||||
| 18 | 3 | 2 | 1:57.69 | ||||
| 19 | 4 | 7 | 1:58.06 | ||||
| 20 | 2 | 1 | 1:58.20 | ||||
| 21 | 4 | 1 | 1:58.32 | ||||
| 22 | 3 | 0 | 1:58.43 | ||||
| 23 | 2 | 8 | 1:58.55 | ||||
| 24 | 4 | 0 | 1:58.76 | ||||
| 25 | 3 | 1 | 1:59.04 | ||||
| 26 | 2 | 2 | 1:59.33 | ||||
| 27 | 3 | 9 | 1:59.45 | ||||
| 28 | 4 | 9 | 1:59.85 | ||||
| 29 | 1 | 5 | 2:01.13 | ||||
| 30 | 3 | 8 | 2:01.46 | ||||
| 31 | 1 | 3 | 2:01.63 | ||||
| 32 | 1 | 6 | 2:03.84 | ||||
| 33 | 1 | 4 | 2:04.31 | ||||
| 34 | 2 | 9 | 2:04.48 | ||||
| 35 | 1 | 2 | 2:04.60 | ||||
| 36 | 1 | 8 | 2:05.64 | ||||
| 37 | 1 | 7 | 2:06.19 | ||||
| 38 | 1 | 1 | 2:07.54 | ||||
| 39 | 1 | 0 | 2:15.38 | ||||
| 40 | 1 | 9 | 2:26.71 |
The semifinals were held on 4 August at 19:04.[3]
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 1 | 1 | 1:54.50 | Q | |||
| 2 | 4 | 1:54.82 | Q | |||
| 3 | 5 | 1:55.42 | Q | |||
| 4 | 7 | 1:55.49 | Q | |||
| 5 | 2 | 1:56.31 | ||||
| 6 | 3 | 1:56.47 | ||||
| 7 | 8 | 1:57.29 | ||||
| 8 | 6 | 1:58.83 |
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 1 | 4 | 1:53.53 | Q | |||
| 2 | 6 | 1:54.75 | Q | |||
| 3 | 5 | 1:54.95 | Q | |||
| 4 | 2 | 1:55.75 | Q | |||
| 5 | 3 | 1:56.02 | ||||
| 6 | 1 | 1:56.11 | ||||
| 7 | 7 | 1:56.96 | ||||
| 8 | 8 | 1:57.94 |
The final was held at 17:52.[4]
| Rank | Lane | Name | Nationality | Time | Notes | |
|---|---|---|---|---|---|---|
| 4 | 1:53.48 | |||||
| 5 | 1:53.68 | |||||
| 7 | 1:54.10 | |||||
| 4 | 3 | 1:54.24 | ||||
| 5 | 6 | 1:54.66 | ||||
| 6 | 2 | 1:55.16 | ||||
| 7 | 1 | 1:55.39 | NR | |||
| 8 | 8 | 1:56.17 |