Șimleu Silvaniei (Romanian pronunciation: [ʃimˌle.u silˈvani.ej]; Hungarian: Szilágysomlyó, German: Schomlenmarkt, Yiddish: שאַמלױ) is a town in Sălaj County, Crișana, Romania with a population of 13,948 people (2021 census). It is located near the ancient Dacian fortress Dacidava.
Three villages are administered by the town: Bic (Bükk), Cehei (Somlyócsehi), and Pusta (Csehipuszta).