Crișana (Hungarian: Körösvidék; German: Kreischgebiet) is a geographical and historical region divided today between Romania and Hungary, named after the Criș (Körös) River and its three tributaries: the Crișul Alb, Crișul Negru, and Crișul Repede.
It is bounded to the east by the Apuseni Mountains, to the south by the Mureș River, to the north by the Someș River, and to the west by the Tisza River. The Romanian-Hungarian border cuts it in two. It is part of the larger Tiszántúl (Transtisa) region.
In ancient times, this area was settled by Celts, Dacians, Sarmatians, and Germanic peoples. In the first century BC, it was part of the Dacian Kingdom under Burebista.
In the Middle Ages, it was ruled by the Hunnic Empire, the Kingdom of the Gepids, the Avar Empire, the Bulgarian Empire, and the Kingdom of Hungary.