Liceul Teoretic "Sfinții Trei Ierarhi" High School in Bucharest is a private educational institution, accredited by the Romanian Ministry of Education, which combines Christian Orthodox values with modern educational methods. Founded more than 15 years ago, the school offers educational programs for primary, middle and high school. The building has 21 well-equipped classrooms, a multi-purpose science laboratory, a library and a chapel. 

The schoolyard includes spaces for recreational and sports activities. In the year 2024, the high school ranked 8th in Bucharest by Baccalaureate exam average, with an average of 9.42 and a 100% pass rate. Students actively participate in cultural and religious events such as Christmas celebrations and concerts dedicated to Romania's National Day. The annual tuition fee is around €4,400 (equivalent to 21,600 lei). Daily school hours are from 08:00 to 16:00