Labour Day, globally recognized as International Workers' Day, is a public holiday in Algeria which is annually celebrated on May 1st to honour the contributions of workers. This day is internationally recognized as a day to celebrate the working class and laborers. It can trace its origins to the international labor movement that took place in the late 19th century where workers rallied for better working conditions and reasonable working hours.

Algeria, being a socialist country, greatly values the hard work of its laborers and therefore, the holiday is widely observed across the country. Businesses, schools, and government offices are generally closed on this day. Parades, rallies, and speeches take place in many Algerian cities reflecting workers' solidarity and their struggles. It is a day for political parties and labor movements to hold demonstrations and express their concerns for workers' rights.

The traditions and activities related to Labour Day in Algeria are at times characterized by a certain level of political activism. The day is seen as a chance to showcase the power and unity of the workforce, and labour unions often organize large-scale demonstrations and marches, demanding improvements in working conditions or demonstrating against policies seen as harmful to workers' interests. Despite its occasional tone of protest, Labour Day is largely celebrated as a tribute to the dedication and achievements of workers, and a day of relief and rest from their hard work.