Trépail (French pronunciation: [tʁepaj]) is a commune in the Marne department in north-eastern France.

[5] Trépail is located at the southeastern foot of the Montagne de Reims.

The stream Ruisseau de Trépail runs through the village, and empties into the Aisne-Marne Canal at Vaudemange.

Trépail shares the Chardonnay dominance with three of its neighbouring villages: Vaudemagne and Billy-le-Grand just below the slope, and Villers-Marmery, located to the north/northeast along the slope.

The current vineyard surface in the Trépail commune is just under 700 acres.