Suchomasty is a municipality and village in Beroun District in the Central Bohemian Region of the Czech Republic.

Suchomasty consists of two municipal parts (in brackets population according to the 2021 census):[2] Suchomasty is located about 7 kilometres (4 mi) south of Beroun and 27 km (17 mi) southwest of Prague.

The most important of them is the Klonk National Nature Monument, which is globally recognized as a geologically important location due to the presence of the Global Boundary Stratotype Section and Point marking the boundary between Silurian and Devonian periods.

Other small-scale protected areas are the nature reserves Na Voskopě and Kobyla.

The first written mention of Suchomasty is in a document from 1088, in which it is stated that King Vratislaus II of Bohemia gave the village of Suchomasty and two plow yards to the newly founded Vyšehrad Chapter.