Zygmunt Antoni Smalcerz (born 8 June 1941) is a retired Polish weightlifter who won the gold medal in the flyweight class at the 1972 Olympics. He also competed at the 1976 Games, but had to withdraw due to injury.
In 2002 he was elected member of the International Weightlifting Federation Hall of Fame.
He was the head coach of the Polish weightlifting team for the run up and including the 2008 Beijing Olympics.
As of 2010, he is the resident weightlifting coach at the United States Olympic Training Center in Colorado Springs.