Iidamachi Station (飯田町駅, Iidamachi-eki) was a railway station on the Chūō Main Line located in Chiyoda, Tokyo, Japan. Iidamachi Station was operated by , Japanese Government Railways, Japanese National Railways and Japan Freight Railway Company (JR Freight). Its location was 0.5 km from Suidōbashi Station and 0.4 km from Iidabashi Station. The station was built in 1895 as the terminal of the Kōbu Railway, a predecessor of the present Chūō Main Line. It ceased to serve passengers in 1933, but continued to serve freight until 1997.