Iraqi Kurdistan or Southern Kurdistan refers to the Kurdish-populated part of northern Iraq. It is considered one of the four parts of "Kurdistan" in West Asia, which also includes parts of southeastern Turkey, northern Syria, and northwestern Iran. Much of the geographical and cultural region of Iraqi Kurdistan is part of the Kurdistan Region (KRI), an autonomous region recognized by the Constitution of Iraq. As with the rest of Kurdistan, and unlike most of the rest of Iraq, the region is inland and mountainous.

Kurdish is a Northwestern Iranian language or group of languages spoken by Kurds in the region of Kurdistan, namely in Turkey, northern Iraq, northwest and northeast Iran, and Syria.