Hamr na Jezeře (German: Hammer am See) is a municipality and village in Česká Lípa District in the Liberec Region of the Czech Republic.

The village of Hamr na Jezeře lies on the shores of the Hamerské jezero Pond.

This fishpond with an area of 56 ha (140 acres) was established in the 16th century and today is used for recreational purposes and fish farming.

At the end of the 19th century, Hamr na Jezeře became a spa village and a tourist destination.

[4] Within Czechoslovakia, Hamr na Jezeře was popularized thanks to the successful 1952 film Dovolená s Andělem.