East Barito Regency (Indonesian: Kabupaten Barito Timur) is one of the thirteen regencies which comprise the Central Kalimantan Province on the island of Kalimantan (Borneo), Indonesia.

It was formed on 10 April 2002 from districts which were formerly part of South Barito Regency.

The town of Tamiang Layang is the capital of East Barito Regency, which covers an area of 3,834 km2.

[1] The table also includes the locations of the district administrative centres, the number of administrative villages in each district (a total of 100 rural desa and 3 urban kelurahan), and its postal codes.

East Barito is one of the most diverse regencies of Central Kalimantan in terms of religious adherence.