The Castle of Yvignac-la-Tour is a monument in the municipality of Yvignac-la-Tour (Côtes-d'Armor, Brittany). It is an attraction for holidaymakers staying in the region.
Listed as a Historic Monument for its tower and its departure from the curtain wall, the castle of Yvignac-la-Tour is a private property not accessible to the public. It can, however, be admired from the outside.