Final answer:
The International Labour Organization (ILO) is a specialized agency of the United Nations that promotes the rights of workers worldwide.
Step-by-step explanation:
The specialized agency of the United Nations that promotes the rights of workers throughout the world is the International Labour Organization (ILO). The ILO was established in 1919 and focuses on issues such as labor standards, employment, social protection, and the rights of workers to organize and bargain collectively. It works to create decent and productive work opportunities for all.