Rembercourt-Sommaisne (French pronunciation: [ʁɑ̃bɛʁkuʁ sɔmɛn]) is a commune in the Meuse department in Grand Est in northeastern France.

Rembercourt-Sommaisne was created on 1 January 1973 when the former communes of Rembercourt-aux-Pots and Sommaisne were joined.

[3] The 15th century church of Saint-Louvent in Rembercourt-aux-Pots is a listed monument.

[4] The Chée forms part of the commune's southern border.

The Aisne rises near Sommaisne, a hamlet in the northern part of the commune.