Laza Kostić Gymnasium (Serbian: Гимназија "Лаза Костић", Gimnazija "Laza Kostić") is a secondary school in Novi Sad, Serbia.

It is named after Laza Kostić, a famous Serbian writer and poet.

Several schools would exchange the use of the building, until 1 September 1996, when the department of Svetozar Marković Gymnasium was formed.

[2] In May 2023, plans for the school gym building for physical education classes were revealed.

The construction is set to be completed for the 2025/26 school year, with an estimated cost around half a million Serbian dinars.