Zámek Poruba, Baroque château in Poruba, Czech Republic.

Zámek Poruba is a small Renaissance château built around 1573 on the site of a medieval fortress, the second-oldest structure in Poruba. It stands on the northern slope of the Porubka river, opposite the large housing estate that makes up most of the district, and is protected as a cultural monument of the Czech Republic.

The château was built around 1573 on the site of a former medieval fortress as a Renaissance residence of the Markvartovic family. In later centuries it frequently changed owners until it passed to the Wilczek family. Allied bombing damaged the whole area, including the château, during the Second World War; after the war it was nationalised, converted into flats and later housed a school of folk arts.

The château's name comes from Poruba, the district on Ostrava's northern edge where it stands. Since 2009 an Orthodox chapel dedicated to Saint George has been consecrated in the grounds, and local speculation holds that a medieval secret passage links the château with the nearby Church of Saint Nicholas.

The château stands on the northern slope of the Porubka river, opposite the large housing estate that makes up most of present-day Poruba. It is protected as a cultural monument of the Czech Republic, and an Orthodox chapel of Saint George was consecrated in its grounds in 2009.

The château merges its baroque heritage with hotel services, allowing guests to sleep within a historical monument rather than simply viewing it from the outside. This arrangement keeps the building actively used and lived-in rather than frozen as a museum exhibit.