Prostřední Suchá (Polish: Sucha Średnia, German: Mittel Suchau) is a village in Karviná District, Moravian-Silesian Region, Czech Republic.
The name is of topographic origin, supposedly derived from an older name of a hypothetical river or stream Sucha, literally dry, therefore disappearing.
[2] The supplementary adjective Prostřední (German: Mittel, Polish: Średnia) means middle denoting its middle location in comparison to sister settlements: Dolní Suchá (Lower) and Horní Suchá (Upper).
In terms of the dominant language spoken colloquially the majority were Polish-speakers (dropping from 67.8% in 1880 to 55.3% in 1910), followed by Czech-speakers (growing from 32.1% in 1880 to 42.8% in 1910), accompanied by German-speakers (at most 55 or 1.8% in 1910) and in 1910 by 3 others.
Following the Munich Agreement, in October 1938 together with the Zaolzie region it was annexed by Poland, administratively organised in Frysztat County of Silesian Voivodeship.