| Kōjimachi | |
| Native Name: | 麹町 |
| Native Name Lang: | ja |
| Settlement Type: | District |
| Image Alt: | Kōjimachi Gakuen, a junior and senior high school |
| Coordinates: | 35.6844°N 139.7583°W |
| Subdivision Type: | Country |
| Subdivision Name: | Japan |
| Subdivision Type1: | City |
| Subdivision Name1: | Tokyo |
| Subdivision Type2: | Ward |
| Subdivision Name2: | Chiyoda |
| Subdivision Type3: | Area |
| Subdivision Name3: | Kōjimachi Area |
| Unit Pref: | Metric |
| Population As Of: | June 1, 2020 |
| Population Total: | 2,719[1] |
| Population Density Km2: | auto |
| Timezone1: | JST |
| Utc Offset1: | +9 |
| Postal Code: | 102-0083 |
| Area Code: | 03 |
is a district in Chiyoda, Tokyo.
Prior to the arrival of Tokugawa Ieyasu, the area was known as . The area developed as townspeople settled along the Kōshū Kaidō.
In 1878, the Kōjimachi area became, a ward of the city of Tokyo. In 1934 and 1938, the addressing system along the Koshu-Kaido was reorganized, creating the 6 chomes subdivision for Kōjimachi that are still used.
In 1947, Kōjimachi Ward was merged with Kanda Ward to form the modern special ward Chiyoda, and the 6 chomes became the Kōjimachi district.
The area centered upon Kōjimachi - including the districts of the Banchō area, Kioichō, Hirakawachō and Hayabusachō - is sometimes referred as the Kōjimachi area (麹町地区), not to be mistaken with Kōjimachi Ward (麹町区).
This place is also known for being the birthplace of Hideki Tojo, general of the Imperial Japanese Army and Prime Minister of Japan during the Second World War.
operates public elementary and junior high schools. Kōjimachi Elementary School (麹町小学校) is the zoned elementary of Kōjimachi 1-4 chōme. Kōjimachi 5-6 chōme are zoned to Banchō Elementary School (番町小学校) in Rokubanchō.[3] Kōjimachi Elementary was formed from the merger of the former Kōjimachi Elementary and Nagatachō Elementary School (永田町小学校). It began holding classes, in the year 2000, at the former Nagatachō Elementary facility. Its current building opened on April 1, 2003.[4]
There is a freedom of choice system for junior high schools in Chiyoda Ward, and so there are no specific junior high school zones.[5] Chiyoda Ward operates Kojimachi Junior High School (麹町中学校) in Hirakawachō.[6]