East Tanjung Jabung Regency is a regency of Jambi Province, Indonesia. It is located on the island of Sumatra. The regency was created on 4 October 1999 by the division of the then Tanjung Jabung Regency into eastern and western halves. It now has an area of 5,087.07 km2 and had a population of 205,272 at the 2010 census and 229,813 at the 2020 census; the official estimate as of mid-2024 was 244,905. The regency's administrative capital lies at the town of Muara Sabak, a riverine port near the mouth of the Berbak River.