
Colmar-Berg (German pronunciation:; Luxembourgish: Colmer-Bierg) is a commune in central Luxembourg, in the canton of Mersch. It comprises the localities of Colmar and Berg, situated on either bank of the river Attert, as well as Welsdorf.
Colmar-Berg is the site of the Grand Duke of Luxembourg's principal residence, Berg Castle. It is also the site of a Goodyear tyre factory.
The commune was known as simply "Berg" until 25 March 1991.
Luxembourg's national drivers' training center (Centre de Formation pour Conducteurs) is also in Colmar-Berg. Each person receiving a driver's license in Luxembourg for the time is required to follow a day-long training course there between three months and two years after the obtention of their license in order to receive a permanent license.
Population
| Year | Pop. | ±% |
|---|---|---|
| 1821 | 458 | — |
| 1851 | 578 | +26.2% |
| 1900 | 678 | +17.3% |
| 1910 | 644 | −5.0% |
| 1922 | 648 | +0.6% |
| 1935 | 608 | −6.2% |
| Year | Pop. | ±% |
|---|---|---|
| 1947 | 572 | −5.9% |
| 1960 | 680 | +18.9% |
| 1970 | 935 | +37.5% |
| 1981 | 1,176 | +25.8% |
| 1990 | 1,332 | +13.3% |
| 2000 | 1,648 | +23.7% |
| Year | Pop. | ±% |
|---|---|---|
| 2005 | 1,880 | +14.1% |
| 2010 | 1,948 | +3.6% |
| 2015 | 2,108 | +8.2% |
| 2020 | 2,192 | +4.0% |
| 2021 | 2,238 | +2.1% |

Source data
Notable people
- Frantz Heldenstein (1892–1975), a Luxembourgish sculptor.
- Jean Kieffer (1909–1961), a Luxembourgish flyweight boxer; competed at the 1928 Summer Olympics
Aristocracy
- Marie-Adélaïde, Grand Duchess of Luxembourg (1894–1924), Grand Duchess of Luxembourg from 1912 to 1919.
- Charlotte, Grand Duchess of Luxembourg (1896–1985), Grand Duchess of Luxembourg from 1919 to 1964.
- Jean, Grand Duke of Luxembourg (1921–2019), the Grand Duke of Luxembourg from 1964 to 2000.
- Prince Charles of Luxembourg (1927–1977), younger son of Grand Duchess Charlotte and Prince Felix of Bourbon-Parma
