Okachimachi Station is a railway station in Taito, Tokyo, Japan, operated by East Japan Railway Company.

The Yamanote Line is a loop service in Tokyo, Japan, operated by the East Japan Railway Company. It is one of Tokyo's busiest and most important lines, connecting most of Tokyo's major stations and urban centres, including Marunouchi, the Yūrakuchō/Ginza area, Shinagawa, Shibuya, Shinjuku, Ikebukuro, and Ueno, with all but two of its 30 stations connecting to other railway or underground (subway) lines.