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Lanny Jaya Regency is a regency (kabupaten) located in the Indonesian province of Highland Papua. It covers an area of 6,077.4 km2, and had a population of 148,522 at the 2010 Census and 196,399 at the 2020 Census; the official estimate as at mid 2025 was 211,330 (comprising 113,360 males and 97,460 females). The administrative centre is the town of Tiom.

Batas-batas wilayah Kabupaten Lanny Jaya adalah sebagai berikut;