Gazeta Olsztyńska (English: Olsztyn Daily) is a Polish language newspaper, published in Olsztyn. The newspaper was first published in the years 1886–1939, in what was then East Prussia. Its first editor in chief was an ethnic Warmiak , after him the paper was taken over by the Pieniezny family. Gazeta Olsztyńska's publishing house issued other papers, such as Gazeta Polska for the Vistula counties, Evangelical Voice, Teacher's Guide. In the interbellum period, the Pieniezny family printing shop printed some 47 books and brochures.