Penajam North Paser Regency

Penajam North Paser Regency is a regency in the Indonesian province of East Kalimantan. Its administrative centre is the town of Penajam. The area which now forms Penajam North Paser was part of the Pasir Regency until its creation as a separate regency on 10 April 2002. It covers an area of 3,455.86 km (of which 3,060.82 km is land area and 272.24 km is sea area) and it had 142,922 inhabitants at the 2010 census and 178,681 at the 2020 census; the official estimate as at mid-2025 was 205,456 (comprising 106,346 males and 99,110 females). Penajam North Paser Regency has the smallest area among the seven regencies in East Kalimantan province.

The regency was historically part of the Paser Kingdom, which was a dependency of the Banjar Sultanate. As the second youngest regency in East Kalimantan, it had been previously affected by frequent territorial changes, to the extent that between 1956 and 1959, the modern-day regency was actually divided into half between Kotabaru of South Kalimantan and Special Region of Kutai of East Kalimantan. In 2019, parts of the regency, entirely consisting of Sepaku district, were designated to be included in the location of the new Indonesian national capital.