The name of the settlement was changed from Marija-Širje (literally, 'Our Lady of Širje') to Širje in 1955. The name was changed on the basis of the 1948 Law on Names of Settlements and Designations of Squares, Streets, and Buildings as part of efforts by Slovenia's postwar communist government to remove religious elements from toponyms.[3][4][5]
^Premk, F. 2004. Slovenska versko-krščanska terminologija v zemljepisnih imenih in spremembe za čas 1921–1967/68. Besedoslovne lastnosti slovenskega jezika: slovenska zemljepisna imena. Ljubljana: Slavistično društvo Slovenije, pp. 113–132.
^Urbanc, Mimi & Matej Gabrovec. 2005. Krajevna imena: poligon za dokazovanje moči in odraz lokalne identitete. Geografski vestnik 77(2): 25–43.