Onarimon Station (御成門駅, Onarimon-eki) is a subway station on the Toei Mita Line in Minato, Tokyo, Japan, operated by the Tokyo subway operator Tokyo Metropolitan Bureau of Transportation (Toei).

Onarimon Station is served by the Toei Mita Line, and is numbered "I-06".

The station has one island platform serving two tracks on the second basement ("B2F") level.

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

• 
  The platform in August 2024

The station opened on 27 November 1973.

• List of railway stations in Japan

• Toei station information (in Japanese)