Fablok is a Polish manufacturer of locomotives, based in Chrzanów. Until 1947 the official name was First Factory of Locomotives in Poland Ltd., Fablok being a widely used syllabic abbreviation of Fabryka Lokomotyw, among others as the company's telegraphic address. It is now named "BUMAR - FABLOK S.A.". Fablok is located in the town of Chrzanów in Lesser Poland. As of 2009, Fablok no longer builds new locomotives.

Chrzanów ( ) is a town in southern Poland with 35,651 inhabitants as of December 2021. It is situated in the Lesser Poland Voivodeship and is the seat of Chrzanów County.