Cattenom (French pronunciation: [katnɔm]; Luxembourgish pronunciation: [kɑʔnɔ̃] Luxembourgish: Kettenuewen; German: Kattenhofen) is a commune in the Moselle department in Grand Est in north-eastern France.

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Cattenom
Commune
Nuclear power plant
Coat of arms
Location of Cattenom
Cattenom Show map of France Cattenom Show map of Grand Est
Coordinates: 49°25′00″N 6°15′00″E
Country	France
Region	Grand Est
Department	Moselle
Arrondissement	Thionville
Canton	Yutz
Intercommunality	Cattenom et Environs
Government
• Mayor (2020–2026)	Bernard Zenner[1]
Area 1	25.47 km2 (9.83 sq mi)
Population  (2021)[2]	2,606
• Density	100/km2 (260/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	57124 /57570
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

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It lies about 8 kilometres north of Thionville. The localities of Homeldange, Husange (aka Hussange) and Sentzich are incorporated in the commune.

Former names:^[4] Cathenem (1182), Kettenem (1214), Kettenhem (1329), Kettenheim (1400), Kerthenhem (1426), Katenem (1432), Kettenheim (1481), Keluchem / Ketenhon / Cetenhem / Kentuchen / Kettenoffen (1544), Kettenhoven (1568-1570), Cettenhouen (1589), Kattenhous (1594), Catnum (16th century), Katenom (1668), Catnom (1685), Kethenoven (1686), Cattenom (1793).

Cattenom is well known for its nuclear power plant, which was built from 1987 to 1992. An artificial lake has been introduced to cool the four nuclear reactors. The creation of this lake has led to the flooding of Ouvrage Kobenbusch, part of the Maginot Line.

• Communes of the Moselle department