With over 3.6 million people passing through the station daily, Shinjuku Station in the city of Tokyo, Japan, is the busiest train station in the world by passenger use.

Shinjuku Station in Tokyo, Japan, holds the Guinness World Record for the busiest railway station on Earth, handling a staggering 1.16 billion passengers annually as of 2026. This translates to roughly 3.5 million people passing through its gates every single day. Shinjuku functions as a massive urban hub, connecting dozens of suburban lines (like the Odakyu and Keio lines) with the main JR East network and the Tokyo Metro. The station is so large and complex—featuring over 200 exits and multiple underground shopping malls—that it is famously difficult to navigate even for locals. Interestingly, the top five busiest stations in the world are almost exclusively located in Japan (including Shibuya, Ikebukuro, and Osaka-Umeda), reflecting the country's unparalleled reliance on high-density rail infrastructure. Outside of Japan, stations like Howrah in India or Gare du Nord in Paris are also massive hubs, but they don't come close to the sheer mathematical scale of Shinjuku's daily passenger volume.