PT Kereta Api Indonesia (Persero) (lit. 'Indonesian Railways (State-owned) Limited', abbreviated as PT KAI or simply KAI) is a major railway operator in Indonesia and one of the public railway companies in the country. It is state-owned and pays track access charges. Its headquarters are located in Bandung, West Java. In 2019, KAI carried 429 million passengers and 47.2 million tonnes of cargo.

Bandung is the capital city of the West Java province of Indonesia. Located on the island of Java, Greater Bandung is the country's second-largest and second most populous metropolitan area, with over 11 million inhabitants. Situated 768 meters above sea level, approximately 140 kilometres southeast of Jakarta, Bandung has cooler year-round temperatures than most other Indonesian cities. The city lies in a river basin surrounded by volcanic mountains that provide a natural defence system, which was the primary reason for the Dutch East Indies government's plan to move the capital from Batavia to Bandung.