100 m Butterfly, Men

Competition	1966 South American Aquatics Championships
Venue	Lima PER
Held	—
Status	Medal
Competitors	6
Countries	3

Pos	Athlete(s)	Country	Mark
🥇	Luis Nicolao	ARG	58.6
🥈	Juan Carlos Carranza	ARG	1:00.7
🥉	Gustavo Ocampo	PER	1:02.3
4	Roberto de Sá	BRA	1:02.6
=5	Fernando Silles	PER	1:02.9
=5	João Lima Neto	BRA	1:02.9