The Allée couverte de Lesconil, also known as the Allée couverte de Kervignon, is a Neolithic gallery grave located near the town of Poullan-sur-Mer in Brittany, France. This type of grave is common in the Brittany region and is known as an "allée couverte", which translates to "covered alley". Dating from around 3500 to 2000 BCE , the tomb is made up of large stone slabs that form a corridor.

The Allée couverte de Lesconil has an unusual and rare construction. The stones slabs are tilted towards each other and touch each other by their tops, in the absence of any covering slab in a horizontal position. The tomb is 12.50 m long for an average width of 2.15 m and a height of 2.40 m.