Knovíz (Czech pronunciation: [ˈknoviːs]) is a municipality and village in Kladno District in the Central Bohemian Region of the Czech Republic.

The highest point is at 332 m (1,089 ft) above sea level.

The territory of today's Knovíz was inhabited already in the Neolithic period, which is proven by finds dating back about 6000 years.

[3] The first written mention of Knovíz is from 1088, when King Vratislaus II donated the village to the Vyšehrad Chapter.

The railway line Louny–Kralupy nad Vltavou runs through the municipality, but there is no train stop.