Isidora Sekulić Gymnasium (Serbian: Гимназија "Исидора Секулић", romanized: Gimnazija "Isidora Sekulić") is a secondary school in Novi Sad, Serbia. It is named after Isidora Sekulić, a famous Serbian writer. It was founded in 1990. The gymnasium has two educational courses, science-mathematics course and humanities-linguistics course, represented with 8 classrooms (4 for each course path) a year and 32 classrooms in total. Classes are done exclusively in Serbian.