Swimming at the 2007 World Aquatics Championships – Men's 50 metre butterfly

The men's 50 metre butterfly at the 2007 World Aquatics Championships took place on 25 March (heats, a swim-off, and semifinals) and on the evening of 26 March (final) at Rod Laver Arena in Melbourne, Australia. 160 swimmers were entered in the event, of which 152 swam.

Existing records at the start of the event were:
 * World record (WR): 22.96, Roland Schoeman (South Africa), 25 July 2005 in Montreal, Canada.
 * Championship record (CR): 22.96, Roland Schoeman (South Africa), Montreal 2005 (25 July 2005)

Semifinals
A swim-off for 8th place should have occurred between Jakob Andkjær and Lyndon Ferns who tied for 8th at 23.99; however, results from a semifinal swim-off in the event are not on the OmegaTiming site, nor in the "complete" result page. Andkjær did advance to the finals, as he swam there, and Ferns did not.

Heats

 * Heat 1


 * Heat 2


 * Heat 3


 * Heat 4


 * Heat 5


 * Heat 6


 * Heat 7


 * Heat 8


 * Heat 9


 * Heat 10


 * Heat 11


 * Heat 12


 * Heat 13


 * Heat 14


 * Heat 15


 * Heat 16


 * Heat 17


 * Heat 18


 * Heat 19


 * Heat 20

Swim-off for 16th place
Following the conclusion of the preliminary heats there was a three-way tie in for 16th at 24.06 between Germany's Thomas Rupprath, and Slovenia's two entries in the event: Peter Mankoč and Jernej Godec.
 * 1 Jernej Godec, Slovenia – 23.74 (Q)
 * 1 Peter Mankoč, Slovenia – 23.74 (Q)
 * 3 Thomas Rupprath, Germany – 23.90

As France's Frédérick Bousquet scratched the final, a swim-off to the swim-off tie was not need, and both Godec and Mankoč advanced to the semifinals.