This chapter explores sustainable human resources management (HRM) as a vital tool for achieving the United Nations (UN) Sustainable Development Goal (SDG) 8. Sustainable HRM encompasses practices that enable organisations to simultaneously achieve economic, environmental, and social goals. This approach highlights employees as key stakeholders in driving organisational sustainability, prioritising well-being, ethical decision-making, and the development of skills that align with sustainable business strategies. Given that the prerequisites for sustainable HRM implementation vary across geographic locations, we drew upon the cases of three developing nations: Kenya, Pakistan, and Sri Lanka. Despite their economic and cultural differences, these three countries all have organisations that implement sustainable HRM practices. However, large portions of their economies still fall under the informal sector, where impoverished conditions are prevalent. To put SDG 8 into practice on a broad scale in these countries is a daunting task. However, improved education and employees who can vote with their feet may encourage employers to enhance their HRM practices in a more sustainable manner to retain a motivated and competent workforce.