Swimming at the 2011 World Aquatics Championships – Men's 200 metre butterfly
The men's 200 metre butterfly competition of the swimming events at the 2011 World Aquatics Championships was held on July 26 with the heats and the semifinals and July 27 with the final.
Records
Prior to the competition, the existing world and championship records were as follows.| Name | Nation | Time | Location | Date | |
| World record Championship record | Michael Phelps | 1:51.51 | Rome | July 29, 2009 |
Results
Heats
40 athletes participated in 5 heats.| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 5 | 7 | Dinko Jukić | 1:55.26 | Q | |
| 2 | 5 | 1 | Leonardo de Deus | 1:55.55 | Q | |
| 3 | 3 | 4 | Bence Biczó | 1:55.71 | Q | |
| 4 | 3 | 3 | Tyler Clary | 1:55.95 | Q | |
| 5 | 5 | 4 | Takeshi Matsuda | 1:55.98 | Q | |
| 6 | 5 | 3 | Chen Yin | 1:56.23 | Q | |
| 7 | 3 | 2 | Chad le Clos | 1:56.37 | Q | |
| 8 | 5 | 6 | László Cseh | 1:56.39 | Q | |
| 9 | 5 | 5 | Paweł Korzeniowski | 1:56.51 | Q | |
| 10 | 3 | 7 | Marcin Cieslak | 1:56.56 | Q | |
| 11 | 4 | 4 | Michael Phelps | 1:56.77 | Q | |
| 12 | 3 | 8 | Stefanos Dimitriadis | 1:56.82 | Q | |
| 13 | 3 | 1 | Ioannis Drymonakos | 1:56.88 | Q | |
| 14 | 3 | 5 | Kaio de Almeida | 1:56.92 | Q | |
| 15 | 4 | 3 | Wu Peng | 1:56.98 | Q | |
| 16 | 3 | 6 | Michael Rock | 1:57.03 | Q | |
| 17 | 5 | 8 | Sebastien Rousseau | 1:57.15 | ||
| 18 | 5 | 2 | Jayden Hadler | 1:57.17 | ||
| 19 | 2 | 7 | Velimir Stjepanovic | 1:57.40 | NR | |
| 20 | 4 | 5 | Ryusuke Sakata | 1:57.66 | ||
| 21 | 2 | 3 | Robert Zbogar | 1:57.71 | NR | |
| 22 | 4 | 6 | Nikolay Skvortsov | 1:57.85 | ||
| 23 | 2 | 6 | Chang Gyu-Cheol | 1:58.02 | ||
| 24 | 4 | 7 | Joseph Roebuck | 1:58.20 | ||
| 25 | 4 | 1 | Stefan Hirniak | 1:58.72 | ||
| 26 | 4 | 8 | Hsu Chi-Chieh | 1:59.33 | ||
| 27 | 2 | 1 | Gal Nevo | 1:59.68 | ||
| 28 | 2 | 4 | Duarte Mourao | 1:59.81 | ||
| 29 | 2 | 8 | Israel Duran | 2:00.55 | ||
| 30 | 2 | 5 | Omar Pinzón | 2:00.79 | ||
| 31 | 1 | 2 | Diego Castillo | 2:00.80 | ||
| 32 | 4 | 2 | Travis Nederpelt | 2:00.98 | ||
| 33 | 1 | 4 | Võ Thái Nguyên | 2:01.25 | ||
| 34 | 2 | 2 | Jan Sefl | 2:01.34 | ||
| 35 | 1 | 8 | Hocine Haciane | 2:04.14 | ||
| 36 | 1 | 6 | Jessie Lacuna | 2:04.23 | ||
| 37 | 1 | 3 | Donny Utomo | 2:05.23 | ||
| 38 | 1 | 5 | Hoàng Quý Phước | 2:05.42 | ||
| 39 | 1 | 1 | Edwin Angjeli | 2:06.68 | ||
| 40 | 1 | 7 | Rommie Benjamin | 2:06.75 |
Semifinals
The semifinals were held at 19.35.Semifinal 1
Semifinal 2
| Rank | Lane | Name | Nationality | Time | Notes |
| 1 | 3 | Takeshi Matsuda | 1:54.30 | Q | |
| 2 | 7 | Michael Phelps | 1:54.85 | Q | |
| 3 | 4 | Dinko Jukić | 1:54.94 | Q | |
| 4 | 8 | Wu Peng | 1:55.28 | Q | |
| 5 | 5 | Bence Biczó | 1:55.35 | Q | |
| 6 | 6 | Chad le Clos | 1:55.56 | Q | |
| 7 | 2 | Paweł Korzeniowski | 1:55.85 | Q | |
| 8 | 1 | Ioannis Drymonakos | 1:57.77 |
Final
The final was held at 18:22.| Rank | Lane | Name | Nationality | Time | Notes |
| 3 | Michael Phelps | 1:53.34 | |||
| 4 | Takeshi Matsuda | 1:54.01 | |||
| 2 | Wu Peng | 1:54.67 | |||
| 4 | 5 | Chen Yin | 1:55.00 | ||
| 5 | 1 | Chad le Clos | 1:55.07 | ||
| 6 | 8 | Paweł Korzeniowski | 1:55.39 | ||
| 7 | 6 | Dinko Jukić | 1:55.48 | ||
| 8 | 7 | Bence Biczó | 1:55.53 |