Red – always included
Orange – sometimes included
Eastern Ukraine or east Ukraine (Ukrainian: Східна Україна, romanized: Skhidna Ukrayina; Russian: Восточная Украина, romanized: Vostochnaya Ukraina) is primarily the territory of Ukraine east of the Dnipro (or Dnieper) river, particularly Kharkiv, Luhansk and Donetsk oblasts (provinces). Dnipropetrovsk and Zaporizhzhia oblasts are often also regarded as "eastern Ukraine".
Almost a third of the country's population lives in the region, which includes several cities with population of around a million. Within Ukraine, the region is the most highly urbanized, particularly portions of central Kharkiv Oblast, south-western Luhansk Oblast, central, northern and eastern areas of Donetsk Oblast.