Jati Agung District is an administrative district (kecamatan) in South Lampung Regency, part of Lampung Province on the island of Sumatra, Indonesia. The district covers an area of 164.47 km<sup>2</sup> and had a population of 128,604 at the 2020 Census, comprising 66,105 males and 62,499 females; the official estimate in mid 2024 was 129,171, comprising 65,811 males and 63,360 females. It is situated to the northeast of Bandar Lampung city, and consists of twenty-one villages (all classed as rural desa), which share a postal code of 35365; many of these are suburban to Bandar Lampung. The administrative centre of the district is the town of Marga Agung.