The Castle Nolibos is a monument in the municipality of Mont-de-Marsan (Landes, New-Aquitaine). It is an attraction for holidaymakers staying in the region.
Former stronghold of Mont-de-Marsan, the castle of Nolibos is a 13th century construction that has now disappeared. The one that once served to strengthen the city's defenses was destroyed in the 18th century during the city's redesign.