East Kutai Regency (Indonesian: Kabupaten Kutai Timur) is a regency of East Kalimantan province, Indonesia.

East Kutai is home to the world's oldest known figurative art at Lubang Jeriji Saléh.

[5] East Kutai Regency is divided into eighteen districts (kecamatan),[2] tabulated below with their areas and their 2010[3] and 2020[4] census populations, together with the official estimates as at mid 2023.

[1] The table also includes the locations of the district administrative centres, the number of administrative villages in each district (a total of 139 rural desa and 2 urban kelurahan), and its postal codes.

Sangatta, the seat of the regency has a tropical rainforest climate (Af) with moderate rainfall from July to October and heavy rainfall from November to June.