Juliusza Słowackiego) is a Polish grammar school (gymnasium) in Český Těšín in the Moravian-Silesian Region of the Czech Republic.
On 8 December 1908 the meeting of "Macierz Szkolna" (Polish educational society) made a decision to establish a private secondary school, expecting it would become government-funded in the near future.
On 7 September 1909 the decree of the new school opening was issued by Austrian Ministry of Education and Religion in Vienna.
The school accepted the name of Juliusz Słowacki, a great Polish romantic poet, whose 100th birth anniversary fell in that particular year.
The school has been successful and popular among students since the beginning and undoubtedly reached a very high level of education soon.
Juliusz Słowacki Polish Grammar School continued its educational work, with mixed Czechoslovak-Polish curriculum.
The staff dispersed – a part remained in Orlová, the rest, being afraid of possible Nazi repressive measures, left the region.
Most of the teachers were soon arrested and taken away to numerous concentration camps, including school principal Piotr Feliks.
The pupils had to give up their secondary studies, the children up to the age of 14 were made to attend German schools, the older ones worked in mines and factories, some were sent to forced labour to Germany.
After the testing registration of future number of pupils (when 350 of them signed up) the Czechoslovak Ministry of Education issued the permit for the opening of Juliusz Słowacki Polish Grammar School in Orlová on 18 September 1945.
On 24 February the school joined a one-hour strike, organized by Communist Trade Unions Organisation.
On 27 February during the first lesson class teachers discussed the changes of the political situation in the state with the pupils.
In April 1948 a meeting took place where the principal instructed all the students „in a great importance of a new school system in Czechoslovakia“.
Shortly before the 50th anniversary the school building underwent general repair of central heating and sewerage.
There was ("temporarily", as its statics was endangered by extensive mining damage in the vicinity) a school for children with special needs and a music-school.