Ilam (Kurdish: Îlam, ئیلام) (Persian: ايلام; also Romanized as Īlām and Elām) is a city in and the capital of Ilam Province, Iran. At the 2006 census, its population was 155,289, in 34,549 families.
The Kabir Kuh mountain range lies east of the city. From the west it borders Iraq. The city is populated by Kurds and speak Kurdish.
Ilam is situated in the cold mountainous region of Iran at a height of 1,319 metres (4,330 ft) above mean sea level. It is located in the west of Iran at a latitude of 33° 38´ north and longitude of 46° 26´ east. Although this city is surrounded by mountains, its climate is also affected by deserts from the west and the south. This region presents a highly variable annual weather profile. Heavy showers or snow in the winter and dusty, brutally hot, dry weather in the summer are normal for this region. The climate is classed under the Köppen climate classification as a Mediterranean climate (Csa) but the seasonal variation in temperature is much greater than usual for this type of climate.
Like many other regions of Iran the architecture in Ilam includes traditional and contemporary periods. Although easy access to fossil fuels and electricity may have aided the transition in Iranian architecture in other regions of Iran from its traditional to modern styles, in Ilam the increasing population has also played a role.