Dolenji Boštanj (pronounced [dɔˈleːnji bɔˈʃtaːn]; German: Untersavenstein[2]) is a settlement in the Municipality of Sevnica in central Slovenia.

[3] The rail line from Sevnica to Trebnje runs through the settlement and has a station there.

Boštanj Manor (German: Hof Savenstein), locally known as Gradič'k 'little castle', stands above the main road in the settlement.

At that time, it was damaged by the French, who established the Illyrian Provinces in the area.

It is probably the successor of Unter Rein Manor, built in the 16th century by the Gallenstein noble family.