Rožmberk is a fish pond in the South Bohemian Region of the Czech Republic.

[1] Rožmberk is located in the South Bohemian Region, about 22 km (14 mi) east of České Budějovice and next to the town of Třeboň.

It is part of the Třeboň fishpond system, which is a set of several hundred fish ponds.

[1] At the time of creation of Rožmberk Pond, its main task was to regulate the frequent floods caused by the Lužnice.

It is the largest in the world in the category of artificially created bodies of water intended primarily for fish farming.

[1] The pond is owned by the Rybářství Třeboň a.s. company, which is the largest producent of freshwater fish in Europe.