Mancieulles (French pronunciation: [mɑ̃sjœl]) is a former commune in the Meurthe-et-Moselle department in north-eastern France. On 1 January 2017, it was merged into the new commune Val de Briey. Its population was 1,843 in 2019.

Mancieulles is located near the border with Belgium, about 20 km north of the city of Metz. The village is situated on the banks of the Moselle River, and it is surrounded by forests and rolling hills. The area around Mancieulles has a rich history, dating back to Roman times, and there are many historic sites and landmarks in the vicinity, including the ruins of a Roman aqueduct and several medieval castles.

• Communes of the Meurthe-et-Moselle department