is a district located in Osaka Prefecture, Japan. In 2009 the district had an estimated population of 37,695 and a density of 491 persons per km<sup>2</sup>. The total area is 76.81 km<sup>2</sup>.
On February 1, 2005, the town of Mihara was merged into the city of Sakai.
On March 1, 2008, the village of Chiahayaakasakarequested a merge into the adjacent city of Kawachinagano after talks of merging with the surrounding towns of Kanan and Taishi fell through. These plans also fell through as of August 14, 2009.