Unions in South Korea held nationwide protests to mark Labour Day 2024 amid government proposals to pay migrant workers less than minimum wage. The weekend before Labour Day, 1 May, hundreds of migrant workers rallied for greater freedom to change workplaces and called for an end to widespread wage theft and poor living conditions which are reportedly a hallmark of migrants' lives in South Korea. The protest comes days after a government-commissioned survey of 379 migrant workers found wage theft was widespread while most workers who filed labour complaints failed to receive remedy from government agencies.

On 1 May itself, one of the largest unions in South Korea, the Korean Confederation of Trade Unions, organised a rally in Seoul, ending in two groups near the presidential office and near the Ministry of Employment and Labor Seoul Branch. 25,000 union members were expected to attend while a separate rally of around 7,000 members of the Federation of Korean Trade Unions was expected to gather elsewhere in the capital.