Sovereign's Day, also known as Commonwealth Day, is a public holiday that is celebrated in Belize on the 24th of May. This holiday honors the birthday of Queen Victoria of the United Kingdom, who reigned from 1837 to 1901. Even though Belize gained its independence from Britain in 1981, the nation has chosen to maintain its ties with the British monarchy and continues to observe this day as a testament to their shared history.

The day is celebrated with various festivities that include parades, concerts, and a variety of family-oriented activities. The holiday is also a reminder of the shared cultural, legal, and linguistic ties to the Commonwealth Realms, a group of 54 countries that were formerly territories of the British Empire. On this day, Belizeans respectfully remember the contributions and influences from their British heritage and its role in shaping their modern society.

Sovereign's Day is not only a day of celebration but also a day of recognition. It serves to acknowledge the country’s history, its journey to independence and to appreciate the shared legacy with other Commonwealth countries. Despite the mixed feelings related to colonialism, Belize sees this day as a national day of unity, reflecting on their past and looking forward to the future. Sovereign's Day remains a significant holiday in the national calendar of Belize, bearing an emblem of the past against the backdrop of the present.