O psie, który jeździł koleją (; ) is 1967 Polish-language children's book by Roman Pisarski. The book was based on the life of Lampo, a dog that became famous for his rail journeys across Italy in the 1950s and 1960s. It is a school reading in the third-grade classes of primary schools in Poland. It was published in 1967 in Warsaw, Poland by Biuro Wydawnicze Ruch.
In 2023, it was adapted into a movie of the same title, directed by Magdalena Nieć.
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