The tests started at 9 a.m. with a Polish-language exam, public broadcaster Polish Radio's IAR news agency reported.
President Karol Nawrocki wrote on X: "Dear high school seniors, today you begin your final exams. I wish you confidence in your abilities and in the knowledge you've gained. I'm keeping my fingers crossed for you. Good luck!"
The matura high school-leaving exams are a rite of passage in Poland. Photo: PAP/Marcin Bielecki
Education Minister Barbara Nowacka also wished students the best of luck.
On Tuesday, students will take a mathematics exam, followed by a foreign-language test on Wednesday.
Photo: PAP/Lech Muszyński
They must sit exams in three compulsory subjects, though most also choose additional subjects required for university admission, according to officials.
The matura exams are a rite of passage in Poland and play a key role in shaping students' futures.
Around 256,700 secondary school students nationwide are expected to take the exams this month, state news agency PAP reported.
(gs)
Source: IAR, PAP