Dujayl or Dujail ("Little Tigris") is the diminutive of Dijla, the Arabic name for the Tigris. It may refer to:
Dujaila River, an irrigation canal in Kut, Iraq Dujayl Canal, an ancient irrigation canal in central Iraq Dujail, a town in Iraq and the seat of Dujail District Dujail Massacre which took place in the town The medieval Arabic name for the Karun