Hrušov (Polish: Gruszów or Hruszów, German: Hruschau) is a part of the city of Ostrava, Moravian-Silesian Region in the Czech Republic. Hrušov is historically a market town, now administratively a part of the district of Slezská Ostrava.
It lies in the historical region of Těšín Silesia and was first mentioned in a written document in 1256. It witnessed heavy industrialization in the 19th century, coal was mined there, several factories were built, influx of migrant workers occurred.
Hrušov gained market town rights in 1908. Formerly an independent municipality, it was incorporated into the city in 1941 by the Nazi mayor, Emil Beier.
According to the Austrian census of 1910 the market town had 7,922 inhabitants, 7,508 of whom had permanent residence there. Census asked people for their native language, 3,585 (47.7%) were German-speaking, 2,429 (32.4%) were Polish-speaking and 1,487 (19.8%) were Czech-speaking. Jews were not allowed to declare Yiddish, most of them thus declared German as their native language. Most populous religious groups were Roman Catholics with 7,502 (94.7%) followed by the Jews with 197 (2.5%) and Protestants with 182 (2.3%).[1]