Františkovy Lázně ([ˈfraɲcɪʃkovɪ ˈlaːzɲɛ] ⓘ; German: Franzensbad) is a spa town in Cheb District in the Karlovy Vary Region of the Czech Republic.

Together with neighbouring Karlovy Vary and Mariánské Lázně, it forms the West Bohemian Spa Triangle.

Its western part with an island is protected as a nature reserve and is an important nesting place and migration stop for water birds.

The sources from which, according to ancient law, water was drafted and brought to the city, were first used locally for salutary purposes.

On 27 April 1793, the town was officially founded under the name Kaiser Franzensdorf, after Emperor Francis II, and later renamed Franzensbad.

[5] During the 19th century, patients included numerous aristocrats, especially Russian nobles, and at the same time, widely known doctors bolstered the reputation of Franzensbad as a therapeutic resort.

Then part of the new state of Czechoslovakia, the spa lost much of its patronage and was hit hard by the Great Depression of 1929.

The spa, officially renamed Františkovy Lázně in Czech, was nationalized under the rule of the Communist Party.

After the Velvet Revolution of 1989, a stock company was established to revive the status of Františkovy Lázně as a venue for international guests.

[6] The effects of the carbonic baths are shown in the better performance of the cardiovascular system, in the mild decrease of blood pressure in the pulse, in the lower occurrence of chronic inflammatory processes in the body, and also in terms of rheumatics, and the improved blood circulation in tissues and the vegetative stabilisation.

[citation needed] The local mud treatments represent a traditional curative method with thermal, chemical and mechanical effects.

[13] The I/21 road (which connects Cheb and the D6 motorway with the Czech-German border crossing in Vojtanov; part of the European route E49) runs through Františkovy Lážně.

The I/6 road (the continuation of the D6 motorway that leads to the border crossing in Pomezí nad Ohří; part of the European route E48) runs south of the town.