Uchisaiwaicho Station (内幸町駅, Uchisaiwaichō-eki) is a railway station on the Toei Mita Line in Uchisaiwaichō, Chiyoda, Tokyo, Japan. Its station number is I-07.

The station consists of a single island platform serving two tracks.

1	I Mita Line	for Shirokane-takanawa and Meguro MG Meguro Line for Musashi-Kosugi and Hiyoshi Sotetsu Main Line for Ebina via the Tokyu/Sotetsu Shin-Yokohama Line Sotetsu Izumino Line for Shōnandai via the Tokyu/Sotetsu Shin-Yokohama Line
2	I Mita Line	for Ōtemachi, Sugamo, and Nishi-takashimadaira

• 
  Ticket gates
• 
  Platforms, 2019

The station opened on 27 November 1973.

The station saw a daily average of 45,660 passengers in 2018.

• Hibiya Park
• Imperial Hotel
• Mizuho Bank
• Tokyo Electric Power Company
• NTT Communications
• Hankyu Hanshin Hotels
• Shimbashi Station
• Toranomon Station

• Toei station information

35°40′11″N 139°45′21″E / 35.6696°N 139.7559°E / 35.6696; 139.7559