Labor Day in Austria, also known as International Workers' Day, is annually celebrated on the 1st of May. This public holiday commemorates the achievements of workers and their contributions to the economy and society. The day is marked by numerous events, demonstrations, and festivals across the country, organized by trade unions, political parties, and other worker groups.

The roots of Labor Day in Austria can be traced back to the historical events of the 19th century. The end of the 19th century saw the rise of the workers' movement, pushing for better working conditions, reduced working hours, and improved wages. The date was chosen to commemorate the Haymarket Affair in Chicago in 1886, a significant event in the history of labor rights, where workers advocating for an eight-hour working day were met with violence.

Today, Labor Day remains an important holiday in Austria. Aside from the political rallies and labor union demonstrations, social events and communal gatherings such as concerts, cultural performances, and parades are also held. Despite the serious origins of the holiday, it is often treated as a welcome break and a day of celebration, a chance for Austrians to enjoy their time off work, spend time with family and friends, and reflect on the social and economic achievements of the working class.