was a district located in Ōita Prefecture, Japan.

As of 2003, the district had an estimated population of 33,239 and the density of 47.09 persons per km2. The total area was 705.90 km2.

Towns and villages Honjō Kamae Kamiura Naokawa Tsurumi Ume Yayoi Yonōzu

Merger On March 3, 2005 the towns of Kamae, Kamiura, Tsurumi, Ume and Yayoi, and the villages of Honjō, Naokawa and Yonōzu were merged into the expanded city of Saiki.

References