Sleman Regency is an Indonesian regency on the island of Java. It is located in the north of the Yogyakarta Special Administrative Region, Indonesia, and has an area of 574.82 square kilometres (221.94 sq mi), with a population of 1,093,110 at the 2010 Census and 1,125,804 at the 2020 Census; the official estimate as at mid 2023 was 1,157,292 - comprising 573,760 males and 583,540 females. Its capital is the town of Sleman. The current regent is Kustini Sri Purnomo.

The Special Region of Yogyakarta is a province-level special region of Indonesia in southern Java. It is a semi-enclave that is surrounded by on the landward side by Central Java Province to the west, north, and east, but has a long coastline on the Indian Ocean to the south.