Kitaadachi (北足立郡, Kita-Adachi-gun) is a district located in Saitama Prefecture, Japan.
As of September 1, 2005, the district has an estimated population of 36,979 and a density of 2,498.58 persons per km2. The total area is 14.80 km2. (These numbers are excluding those of Fukiage, which merged with a city outside the district on October 1, 2005.)