| Event: | Men's 200m butterfly |
| Competition: | 2005 FINA World Aquatics Championships |
| Dates: | 26 July (heats and semifinals) 27 July (final) |
| Competitors: | 44 |
| Nations: | 31 |
| Win Value: | 1 minute 55.02 seconds |
| Gold: | Paweł Korzeniowski |
| Goldnoc: | POL |
| Silver: | Takeshi Matsuda |
| Silvernoc: | JPN |
| Bronze: | Wu Peng |
| Bronzenoc: | CHN |
| Prev: | 2003 |
| Next: | 2007 |
See main article: Swimming at the 2005 World Aquatics Championships.
The Men's 200 Butterfly event at the 11th FINA World Aquatics Championships was swum on 26 - 27 July 2005 in Montreal, Canada. The Preliminary and Semifinal heats were on 26 July; the final was held on 27 July.
As the Championships were swum in a long course pool, this race consisted of 4 lengths of the pool, butterfly.
At the start of the event, the existing World (WR) and Championships records were:
| Place | Swimmer | Nation | Time | Notes |
|---|---|---|---|---|
| 1 | 1:55.02 | |||
| 2 | 1:55.62 | |||
| 3 | 1:56.50 | |||
| 4 | 1:56.74 | |||
| 5 | 1:57.04 | |||
| 5 | 1:57.04 | |||
| 7 | 1:57.67 | |||
| 8 | 1:57.71 | |||
| Rank | Heat+Lane | Swimmer | Nation | Time | Notes | |
|---|---|---|---|---|---|---|
| 1 | S2 L5 | 1:56.11 | q | |||
| 2 | S2 L2 | 1:56.14 | q | |||
| 3 | S2 L3 | 1:56.33 | q | |||
| 4 | S1 L3 | 1:56.88 | q | |||
| 5 | S1 L1 | 1:57.07 | q | |||
| 6 | S1 L6 | 1:57.09 | q | |||
| 7 | S1 L5 | 1:57.16 | q | |||
| 8 | S2 L4 | 1:57.36 | q | |||
| 9 | S1 L4 | 1:57.46 | ||||
| 10 | S2 L1 | 1:57.91 | ||||
| 11 | S2 L8 | 1:57.97 | ||||
| 12 | S2 L7 | 1:58.20 | ||||
| 13 | S1 L2 | 1:58.24 | ||||
| 14 | S1 L8 | 1:58.36 | ||||
| 15 | S2 L6 | 1:58.39 | ||||
| 16 | S1 L7 | 1:59.25 | ||||
| Rank | Heat+Lane | Swimmer | Nation | Time | Notes | |
|---|---|---|---|---|---|---|
| 1 | H6 L3 | 1:56.60 | q | |||
| 2 | H5 L3 | 1:56.91 | q | |||
| 3 | H5 L4 | 1:56.93 | q | |||
| 4 | H6 L7 | 1:57.17 | q | |||
| 5 | H5 L5 | 1:57.44 | q | |||
| 6 | H6 L4 | 1:57.47 | q | |||
| 7 | H5 L6 | 1:57.57 | q | |||
| 8 | H6 L6 | 1:57.82 | q | |||
| 9 | H6 L5 | 1:57.90 | q | |||
| 10 | H4 L6 | 1:58.30 | q | |||
| 11 | H6 L2 | 1:58.80 | q | |||
| 12 | H6 L1 | 1:58.89 | q | |||
| 13 | H4 L2 | 1:58.93 | q | |||
| 14 | H4 L5 | 1:58.95 | q | |||
| 15 | H4 L4 | 1:59.09 | q | |||
| 16 | H4 L7 | 1:59.20 | q | |||
| 17 | H5 L7 | 1:59.38 | ||||
| 18 | H5 L1 | 2:00.08 | ||||
| 19 | H5 L8 | 2:00.17 | ||||
| 20 | H4 L1 | 2:00.33 | ||||
| 21 | H5 L2 | 2:00.40 | ||||
| 22 | H4 L3 | 2:00.52 | ||||
| 23 | H3 L5 | 2:01.44 | ||||
| 24 | H6 L8 | 2:01.73 | ||||
| 25 | H2 L7 | 2:01.88 | ||||
| 26 | H3 L1 | 2:02.77 | ||||
| 27 | H3 L4 | 2:03.86 | ||||
| 28 | H3 L2 | 2:04.27 | ||||
| 29 | H2 L4 | 2:04.50 | ||||
| 30 | H2 L1 | 2:04.74 | ||||
| 31 | H3 L6 | 2:05.08 | ||||
| 32 | H4 L8 | 2:05.30 | ||||
| 33 | H3 L8 | 2:05.72 | ||||
| 34 | H3 L7 | 2:05.93 | ||||
| 35 | H2 L3 | 2:06.49 | ||||
| 36 | H2 L2 | 2:06.52 | ||||
| 37 | H1 L4 | 2:07.05 | ||||
| 38 | H1 L5 | 2:07.40 | ||||
| 39 | H2 L6 | 2:07.98 | ||||
| 40 | H2 L8 | 2:09.55 | ||||
| 41 | H1 L6 | 2:10.44 | ||||
| 42 | H2 L5 | 2:10.57 | ||||
| 43 | H1 L3 | 2:15.70 | ||||
| - | H3 L3 | DNS | ||||