Isidro Vicera Jr. (born March 30, 1970) is a Filipino boxer. He competed in the men's flyweight event at the 1992 Summer Olympics.
He comes from a family of boxers. His brother Virgilio also competed in the 1996 Summer Olympics
Isidro Vicera has also competed in the SEA Games, winning a gold medal at the 1989 edition in the flyweight division. In the 1991 SEA Games, he failed to defend his title, settling for a silver medal.