Kajichō (鍛冶町) is a district of Chiyoda, Tokyo, Japan. It consists of Kajichō 1-chōme and Kajichō 2-chōme. This article also explains about Kanda-Kajichō (神田鍛冶町), which today only has Kanda-Kajichō 3-chōme. As of April 1, 2007, the total population of the two districts is 371.

Chiyoda , known as Chiyoda City in English, is a special ward of Tokyo, Japan. Located in the heart of Tokyo's 23 special wards, Chiyoda consists of the Imperial Palace and a surrounding radius of about a kilometer, and is known as the political and financial center of Japan. As of October 2020, the ward has a population of 66,680, and a population density of 5,709 people per km2, making it by far the least populated of the special wards. The total area is 11.66 km2, of which the Imperial Palace, Hibiya Park, National Museum of Modern Art, and Yasukuni Shrine take up approximately 2.6 km2, or 22% of the total area.