Třemošná (Czech pronunciation: [ˈtr̝̊ɛmoʃnaː]; German: Tschemoschna) is a town in Plzeň-North District in the Plzeň Region of the Czech Republic. It has about 5,100 inhabitants.

The village of Záluží is an administrative part of Třemošná.

The name Třemošná evolved from the word střemcha, i.e. 'bird cherry'.

Třemošná is located about 5 kilometres (3 mi) west of Plzeň. It lies in the Plasy Uplands. The highest point is at 465 m (1,526 ft) above sea level. The Třemošná River flows through the town. The Bělá Stream joins the Třemošná in the western part of the municipal territory.

The first written mention of Třemošná is from 1181. The village changed owners very often. Among the owners in the 13th–15th centuries were the chapter in Mělník, the monastery in Plasy, and various lower noblemen. In 1509, Třemošná was acquired by Albrecht of Kolowrat, later it was bought by Jan and Bernard Waldstein. In the late 17th century, Třemošná became part of the Nekmíř estate and shared its owners and destinies.

From the beginning of the 19th century, the village began to gradually change its face thanks to the development of coal mining and industry. In 1862–1864, a glass factory was established here. Coal mining ended at the end of the 19th century. In 1961, the village of Záluží was joined to Třemošná. In 1972, Třemošná became a town.

Historical population

Year Pop. ±% 1869 1,246 —     1880 1,751 +40.5% 1890 2,154 +23.0% 1900 2,726 +26.6% 1910 3,151 +15.6%	Year Pop. ±% 1921 3,618 +14.8% 1930 4,315 +19.3% 1950 3,581 −17.0% 1961 3,917 +9.4% 1970 3,920 +0.1%	Year Pop. ±% 1980 4,856 +23.9% 1991 4,646 −4.3% 2001 4,624 −0.5% 2011 4,878 +5.5% 2021 5,098 +4.5%
Source: Censuses

Třemošná is located on the railway line heading from Plzeň to Plasy and Žihle.

Třemošná is poor in monuments. The most notable monuments are a pharmacy with an Art Nouveau façade from the beginning of the 20th century and a Neoclassical chapel from the mid-19th century.

• Václav Brožík (1851–1901), painter

• Official website