Hrastje pri Grosupljem (pronounced [ˈxɾaːstjɛ pɾi ɡɾɔˈsuːpljɛm]) is a settlement between Grosuplje and Šmarje-Sap in central Slovenia. The Slovenian A2 motorway runs across the settlement's territory. The area is part of the historical region of Lower Carniola.