Antoni Jan Szymanowski (born 13 January 1951) is a Polish football manager and former player who played as a right-back.

He was a member of the Poland national football team for two FIFA World Cups: 1974 and 1978.

Szymanowski was one of the best defenders in Poland during the golden era of Polish football.

In the later years of his career, he played for the Belgian team Club Brugge.

He also competed for Poland at the 1972 and 1976 Summer Olympics.