Swimming at the 1992 Summer Olympics – Men's 100 metre butterfly

The men's 100 metre butterfly event at the 1992 Summer Olympics took place on 27 July at the Piscines Bernat Picornell in Barcelona, Spain.

Records
Prior to this competition, the existing world and Olympic records were as follows.

Heats
Rule: The eight fastest swimmers advance to final A (Q), while the next eight to final B (q).