Bykoš is a municipality and village in Beroun District in the Central Bohemian Region of the Czech Republic. It has about 300 inhabitant…Bykoš is a municipality and village in Beroun District in the Central Bohemian Region of the Czech Republic. It has about 300 inhabitants. The name is probably derived from the personal name Bykoš. He could have been the founder of the settlement or its oldest inhabitant.