Mertzig should not be confused with Merzig.
| Mertzig | |
| Settlement Type: | Commune |
| Mapsize: | 200px |
| Subdivision Type: | Country |
| Subdivision Name: |  Luxembourg |
| Subdivision Type1: | Canton |
| Subdivision Name1: | Diekirch |
| Leader Title: | Mayor |
| Unit Pref: | Metric |
| Area Rank: | of 100 |
| Elevation Max Rank: | of 100 |
| Elevation Min Rank: | of 100 |
| Population Rank: | of 100 |
| Population Density Km2: | auto |
| Population Density Rank: | of 100 |
| Timezone1: | CET |
| Utc Offset1: | +1 |
| Timezone1 Dst: | CEST |
| Utc Offset1 Dst: | +2 |
| Blank Name Sec1: | LAU 2 |
| Blank Info Sec1: | LU0000607 |
| Website: | mertzig.lu |
Mertzig (lb|Mäerzeg) is a commune and town in central Luxembourg. It is part of Diekirch Canton.
Mertzig was formed on 30 December 1874, when it was detached from the commune of Feulen. The law forming Mertzig was passed on 20 November 1874.[1]