Tržnice, Market hall in Karlovy Vary, Czech Republic.

Tržnice is a free-standing Art Nouveau market hall in Karlovy Vary, built in 1912–1913 by the Vienna firm Rella and Neffe. Its reinforced-concrete frame carries massive arched ribs, creating a three-nave hall 60 metres long and 35 metres wide without internal partition walls. A lantern with a gallery rises at the crossing with the entrance wing; the building is 15.4 metres high, or 22 metres with its turret.

Built in 1913, the market hall quickly became a central trading point serving local merchants and farmers in Karlovy Vary. This construction created an important commercial center that shaped the trading structure of the region for decades to come.

The Czech word tržnice simply means market hall, and since 2011 farmers' markets have been held in front of the building, reviving its role as a food-trading spot. Inside, the hall now houses an Albert supermarket, and the city bus station stands right beside it.

The hall stands in the northern part of Karlovy Vary, outside the spa zone, near the confluence of the Teplá and Ohře rivers. A city bus stop sits right by the building, and the main entrance is reached from the street side. Farmers' markets have been held in front of the hall since 2011.

The use of reinforced concrete for a market building in the early 1900s was uncommon and represented a forward-thinking approach to construction for that era. This building method allowed for large open interior spaces without internal support columns, which made the trading floor more flexible and practical.