Wiltz is a commune with town status in north-western Luxembourg, capital of the canton Wiltz. Wiltz is situated on the banks of the river Wiltz. It was also a battleground in the Battle of the Bulge, near the end of World War II. A local airfield (near the village of Noertrange) was used by both sides of the conflict, depending on the location of the Front.

As of 2014, the town of Wiltz, which lies in the south of the commune, has a population of 5,469.

The name "Wiltz" comes from a Celtic word meaning "on the creek." Wiltz was originally inhabited by the Celts, and was first documented in 764AD. It received its town rights in 1240. The counts of Wiltz are among the oldest in Luxembourg.

Wiltz has a quiet town centre. There is an outdoor musical hall with bands and classical musical shows held typically every fortnight. Looking out from the hill on the music hall one will see the largest lake in the country at Esch-sur-Sure, located around 20 km away. A local multi-carriage tourist "road-train" takes visitors around the village and its surroundings on the hour.

There is also an international soccer training pitch. In the heart of Wiltz there is plenty to see with a second world war tank parked in the main plaza. One of the most popular nights out is the summer rave held 10 km in the wilderness. A local farm has been transformed into a pub and rave club, this is a favourite night out for scout units (male and female).

Wiltz is a major centre for the international scouting movement. There are many scout campsites and buildings surrounding the town. The International Scouting One Penny Monument, dedicated to Robert Baden-Powell, is located in Wiltz.

Nearby Wiltz, on a hill overlooking the town, the Sanctuary of Our Lady of Fatima is the site of an annual pilgrimage on Ascension Day. In particular it attracts many of the Portuguese people who form a sizeable proportion of the population of Luxembourg.

The Festival of Wiltz, a music and performing arts festival, takes place every summer.