Irena may refer to:
People Irena (name)
Places Irena, Missouri, a village in the United States Irena, Subcarpathian Voivodeship, a village in south-east Poland Irena, Lublin Voivodeship, a town in eastern Poland, merged into nearby Dęblin in 1953
Other uses HD 146389 (also known as WASP-38 or Irena), a star with a yellow-white hue in the northern constellation of Hercules International Renewable Energy Agency, an intergovernmental organisation mandated to promote adoption and use of renewable energy Irena (bird), a genus of passerine birds IRENA, the Nicaraguan Institute of Natural Resources and the Environment, now the Ministry of the Environment and Natural Resources
See also Irene (disambiguation)