Swimming at the 2008 Summer Olympics – Men's 100 metre breaststroke
Records
Prior to this competition, the existing world and Olympic records were as follows. The following new world and Olympic records were set during this competition.

Swimming at the 2008 Summer Olympics – Men's 100 metre breaststroke

Section Title: Records
Table Section Text: Prior to this competition, the existing world and Olympic records were as follows. The following new world and Olympic records were set during this competition.

Date	Event	Name	Nationality	Time	Record

August 9	Heat 7	Alexander Dale Oen	Norway	59.41	OR

August 10	Semifinal 2	Alexander Dale Oen	Norway	59.16	OR

August 11	Final	Kosuke Kitajima	Japan	58.91	WR, OR

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