Belgian National Day

Belgian National Day is Belgium’s annual national holiday, held every 21 July. The day commemorates King Leopold I’s oath to the constitution in 1831, marking the beginning of the modern Belgian state, and is celebrated with ceremonies, parades, and public festivities across the country.

• The main parade and festivities take place in Brussels
• A fireworks show ends the day’s celebrations
• King Leopold I’s 1831 oath inspired the holiday
• The National Ball concert has been part of the day since 2003
• Belgian flags and decorations fill cities and towns

What it is

Belgian National Day is the country’s most important civic celebration, taking place every 21 July. The holiday honours the moment when Leopold I became Belgium’s first king by swearing loyalty to the newly written constitution in 1831, a pivotal event that signalled Belgium’s emergence as an independent nation. For Belgians, the day is a time to express national pride and reflect on their shared history, with traditions that unite communities across the country. The festival stands as a reminder of both the monarchy’s role and the constitutional foundations of the Belgian state.

Where it comes from

After the Napoleonic Wars, Belgium was incorporated into the United Netherlands, but unrest led to the Belgian Revolution in 1830 and a push for independence. Revolutionary leaders decided to form a constitutional monarchy and chose Prince Leopold of Saxe-Coburg-Gotha as their king. On 21 July 1831, Leopold arrived in Brussels and pledged to uphold the Belgian constitution, a date now seen as the birth of modern Belgium. Originally, the main national holiday was in late September, marking the expulsion of Dutch troops, but in 1890, the focus shifted to 21 July to better highlight the monarchy and constitutional order. Over time, the day became a powerful symbol of unity, especially during periods of occupation when public celebrations were forbidden.

How it is celebrated

On 21 July, festivities take place all over Belgium, with the largest gatherings in Brussels. The day’s events often begin with a religious service attended by the royal family and officials. Later, a grand military and civil parade winds through central Brussels, with the King reviewing the troops and displays. Public parks and squares host activities from emergency service demonstrations to charity stalls and civic group presentations. The Belgian Air Force performs a flyover, and in the evening, a fireworks display lights up the capital. Since 2003, a lively public concert known as the National Ball adds music and dancing to the celebrations. Throughout the country, people take part in concerts, local fairs, and flea markets, while Belgian flags decorate homes and businesses. The holiday is so closely linked with the country’s often rainy weather that the French nickname for the day is the “National Downpour.”

Joining in

If you visit Belgium on 21 July, Brussels is the heart of the celebrations, especially around the Royal Palace and city centre. Expect large crowds and a festive atmosphere, with music, food stalls, and family-friendly activities filling the parks and streets. The military parade and evening fireworks are highlights, drawing both locals and visitors. While the capital hosts the biggest events, smaller towns also mark the day with community gatherings and concerts, making it easy to join in wherever you are in Belgium.

Sources and attribution

This page is Mela's own summary, written in new words. Its facts are drawn from the Wikipedia article Belgian National Day, whose text is available under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). Each photo is credited to its author beside it. For the full account, read the originals below.

Read more

• Belgian National Day on WikipediaEncyclopedia
• More photos on Wikimedia CommonsPhotos
• Wikidata recordOpen data

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