|• Total||15.25 km2 (5.89 sq mi)|
|Area rank||75th of 102|
|Highest elevation||325 m (1,066 ft)|
|• Rank||93rd of 102|
|Lowest elevation||132 m (433 ft)|
|• Rank||1st of 102|
|• Rank||34th of 102|
|• Density||300/km2 (770/sq mi)|
|• Density rank||26th of 102|
|Time zone||UTC+1 (CET)|
|• Summer (DST)||UTC+2 (CEST)|
Mertert (Luxembourgish: Mäertert) is a commune and town in eastern Luxembourg, on the border with Germany. It is part of the canton of Grevenmacher. The commune consists of the towns of Mertert and Wasserbillig. Mertert has a river port on the Moselle, the largest in Luxembourg. The commune's administrative centre is Wasserbillig.
As of 2005[update], the town of Mertert, which lies in the south of the commune, has a population of 1,101. Another town within the commune is Wasserbillig.