Luis Augusto Juncos (born 15 September 1962) is an American-based Argentine former swimmer and current doctor.
He competed in two events at the 1984 Summer Olympics.His wife is fellow Argentine Olympic swimmer Valentina Aracil and their daughter is American-born Argentina women's national football team member Natalie Juncos.
His father, Luis Juncos Sr., is also a doctor and worked with Robert Cade at the University of Florida.