Church gymnasium of St. Jána Krstiteľ Trebišov started its activities on 1 September 1995 as the first Greek Catholic grammar school in Slovakia. 25 years of its existence confirms that it successfully continues the good traditions of church education in the city of Trebišov and its region and has its basis in the secondary school market. The founder of the school is the Greek Catholic Eparchy of Košice. The school is an alternative to the state school.

Study at the school is four years with an emphasis on strengthening the teaching of foreign languages ​​and natural science subjects.