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- 9–22 October 1740 – Dutch East Indies soldiers and native collaborators killed at least 10,000 ethnic Chinese residents of the port city of Batavia (pictured)
- 17 October 2023 – The Whoosh High-speed rail inagruated by President Joko Widodo which connecting Jakarta to Bandung, and first High-speed rail in ASEAN and Indonesia
- 28 October 1928 – The Second Youth Congress was held in Batavia, Dutch East Indies by the young Indonesian nationalists, resulting in a declaration that is called the Youth Pledge.