Kajiki (加治木町 Kajiki-chō?) was a town located in Aira District, Kagoshima Prefecture, Japan. It is located north of the city of Kagoshima. Kajiki is located on the northern part of the bay. Kagoshima Airport is to the north.
As of 2003, the town had an estimated population of 23,364 and the density of 491.87 persons per km². The total area was 47.50 km².
On March 23, 2010, Kajiki, along with the towns of Aira (former) and Kamō (all from Aira District), was merged to create the city of Aira. Aira District will be left with one municipality.
It is accessed with the Kyūshū Expressway at Interchange 25-1 along with the Junction and access with another freeway linking to and in the east. The interchange was opened on December 13, 1973 and extended north to Mizobe-Kagoshima Airport on November 29, 1976. On March 25, 1992, a section was opened which became the East Kyūshū Expressway on December 19, 2001 when the expressway became connected.
Kajiki has elementary schools, middle schools, high schools including Kajiki High School (Kajiki Kōkō), one of the top 5 academic schools of Kagoshima. Kajiki's main station is Kajiki train station, with a view of Sakurajima. There is also a post office, parks and banks. A river runs slightly west of Kajiki. In the spring time, the park that runs along the river is a popular place for locals to enjoy Hanami (flower watching) BBQs.