Transjakarta Corridor 9 is a bus rapid transit corridor in Jakarta, Indonesia, operated by Transjakarta. The corridor connects the Pinang Ranti bus terminal in East Jakarta with the Pluit BRT station in North Jakarta. The roads traversed by corridor 9 are: Jalan Pondok Gede Raya, Jagorawi Toll Road, Jalan Mayjen Sutoyo, Jalan Letjen M.T. Haryono, Jalan Jend. Gatot Subroto, Jalan Letjen S. Parman, Jalan Satria/Prof. Dr. Makaliwe, Jalan Prof. Dr. Latumeten, Jalan Jembatan Tiga, and Jalan Pluit Putri/Putra. Corridor 9 is integrated with the KAI Commuter Bogor Line service at the Cikoko BRT station that connects to the Cawang railway station and the Tangerang Line at Kali Grogol BRT station that connects to the Grogol railway station. Corridor 9 is also integrated with Jabodebek LRT from Cawang to Pancoran BRT stations.

Transjakarta or Jakarta BRT is a bus rapid transit (BRT) system in Jakarta, Indonesia. The first BRT system in Southeast Asia, it commenced operations on 15 January 2004 to provide a fast public transport system to help reduce rush hour traffic. The system is considered as the first revolutionary public transit mode in the capital city of Indonesia. The buses run in dedicated lanes (busways), and ticket prices are subsidised by the regional government. Transjakarta has the world's longest BRT system, which operates about 4,300 buses. Transjakarta aims to have 50 percent of its fleet be electric buses by 2027. By 2030, the aim is for the entire Transjakarta ecosystem to use electric buses. As of November 2023, it serves an average of 1.134 million passengers daily.