The Wilno school massacre was a school shooting that occurred on 6 May 1925 at the Joachim Lelewel High School in Wilno, Second Polish Republic. During the final exams, at about 11 a.m., at least two eighth-grade students attacked the board of examiners with revolvers and hand grenades, killing two students, one teacher, and themselves.
It was the first-ever school shooting that took place in Poland, preceding the Janikowo school shooting in 1 April 1936, the Kluczbork School of Economics shooting on December 16, 2001 and the Brześć Kujawski school shooting on May 27, 2019.
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