Jerzy Lesniak (14 August 1957, Nowy Sacz, Poland – 20 August 2017) was a Polish journalist, author and historian.
His best-known book, Encyklopedia Sadecka (published in 2000, co-authored with Augustyn Lesniak and Karol Lesniak), has been so far the most comprehensive source and compendium of the region's history, as well as personal biographies and rare illustrations.A graduate of the department of political science and journalism at the Jagiellonian University in Kraków.
In the early 1980s he began working for a regional newspaper "Dunajec", then moved to a daily Gazeta Krakowska (head of the Nowy Sacz office since 1989-95) and Dziennik Polski (1996–2003).Lesniak was an editor-in-chief of a weekly regional magazine Echo and a quarterly Nowy Sacz.
During the years 2003-06 he was a spokesman of the president of the city of Nowy Sacz.
Up to this day he has been one of the editors of the annual print of "Rocznik Sadecki" and an academic teacher of mass communication.
He is a secretary general of the regional association Klub Ziemi Sadeckiej.