Illizi () is a large province (wilaya) in the south-eastern corner of Algeria named after its eponymous seat.
It borders Ouargla Province to the north, Tunisia to the extreme northeast, Libya to the east, Djanet Province to the south and, to the west, In Salah Province and Tamanrasset Province. As of the 2008 census, the province had a population of 52,333 and an annual growth rate of 4.5%.
Administrative divisions
The province is divided into 2 districts, which are further divided into 4 communes or municipalities.
{| class="wikitable sortable"
!District
!Commune
!Map
|-
|Illizi District
|Illizi
|ﻳﻠﻴﺰى
|-
| rowspan="3" |In Amenas District
|Bordj Omar Driss
|برج عمار إدريس
|-
|Debdeb
|دبدب
|-
|In Amenas
|إن أمناس
|}
Natural resources
The area is rich in natural gas. One of the most promising sites for natural gas production is the Ain Tsila gas field in the Isarene permit, some 57% of which is owned by the Irish company Petroceltic International, 18% by the Italian company Enel, Reportedly, Petroceltic's 56.7% is worth between US$800 million and US$1 billion.