The Jayawijaya Mountains, formerly known as the Orange Range, are the eastern mountain range of the Maoke Mountains in the central highlands region of the Indonesian part of New Guinea. The range extends for 370 km east of the Sudirman Range to the Star Mountains. Its highest point is Puncak Mandala at 4760 m. The Baliem River has its source in the range. Inhabitants of the range include the Ketengban. Jayawijaya Mountains Wildlife Refuge, also known as Pegunungan Jayawijaya Wildlife Refuge, covers part of the range. The range's Eternity Glaciers are projected to vanish by the year 2026, due both to climate change and strong El Niño weather patterns. The glaciers' depth has declined from 32 m in 2010 to 8 m in 2021.

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