Lomná (river)
also known as is a -long river in Frýdek-Místek District, Moravian-Silesian Region, Czech Republic, in the historical region of Cieszyn Silesia.
It is the left tributary of the Olza River, to which it enters in Jablunkov. It originates near the border with Slovakia and flows through the villages of Horní Lomná, Dolní Lomná and Bocanovice.
It was mentioned in 1592 as przi rzece Lomny. The name is derived from the words łom or załom.Footnotes