International Workers’ Day, celebrated on May 1, is a global observance that honours the contributions and rights of workers. While not directly rooted in Catholic tradition, it has relevance to the Church’s teachings on the dignity of labour, justice, and the rights of workers. The Catholic Church emphasizes the sanctity of work and the importance of fair treatment, as highlighted in encyclicals like Rerum Novarum (1891) by Pope Leo XIII, which advocates for workers’ rights, fair wages, and social justice. The Church encourages the promotion of human dignity in the workplace, aligning with the spirit of International Workers’ Day.