Regiment or the regimental system (uk|полк|translit=polk, uk|полковий устрій|translit=polkovyi ustrii) is a historical administrative, territorial, military and judicial unit of the country's subdivision of the Cossack Hetmanate and the Sloboda Ukraine in the 17th–18th centuries.
System was expanded out of already existing system of the Registered Cossacks over Kyiv, Bratslav and Chernihiv Voivodeships in the Polish–Lithuanian Commonwealth.
Regiments were headed by the Cossack Colonel (uk|полковник|translit=polkovnyk) who was a member of the Cossack Council of the Officers (uk|рада старшин|translit=rada starshyn).
Regiment was the first level of the administrative and military division of the Cossack Hetmanate.
| Subdivisions of the Cossack Hetmanate | |||
|---|---|---|---|
| First | Regiment | uk|полк|polk, pl. uk|полки|polky | |
| Second | Sotnia | uk|сотня|sotnia, pl. uk|сотні|sotni | |
| Third | Kurin | uk|курінь|kurin, pl. uk|курені|kureni | |
In 1649, when the Cossack Hetmanate was established by the Treaty of Zboriv and controlled both the right and left banks, it included 16 regiments. After the loss of the Right–Bank Ukraine, a number was reduced to 10 regiments.
| Regiment | Ukrainian | Coat of arms | Years of formation | |
|---|---|---|---|---|
| Chyhyryn Regiment | Чигиринський | 1625-1678 | ||
| Cherkasy Regiment | Черкаський | 1625-1686 | ||
| Korsun Regiment | Корсунський | 1625-1712 | ||
| Bila Tserkva Regiment | Білоцерківський | 1625-1712 | ||
| Kaniv Regiment | Канівський | 1625-1712 | ||
| Pereyaslav Regiment | Переяславський | 1625-1782 | ||
| Kyiv Regiment | Київський | 1625-1782 | ||
| Myrhorod Regiment | Миргородський | 1625-1782 | ||
| Ovruch Regiment | Овруцький | 1648-???? | ||
| Irkliyiv Regiment | Іркліївський | 1648-1648 | ||
| Sosnytsia Regiment | Сосницький | 1648-1648 | ||
| Chornobyl Regiment | Чорнобильський | 1648-1649 | ||
| Borzna Regiment | Борзнянський | 1648-1649 | ||
| Zhyvotiv Regiment | Животівський | 1648-1649 | ||
| Ichnya Regiment | Ічнянський | 1648-1649 | ||
| Hadyach Regiment | Гадяцький | 1648-1649 | ||
| Zviahel Regiment | Звягельський | 1648-1649 | ||
| Ostropil Regiment | Остропільський | 1648-1649 | ||
| Podillya Regiment | Подільський | 1648-1649 | ||
| Lyubartiv Regiment | Любартівський | 1648-1649 | ||
| Lysianka Regiment | Лисянський | 1648-1657 | ||
| Bratslav Regiment | Брацлавський | 1648-1667 | ||
| Vinnytsia Regiment | Вінницький | 1648-1667 | ||
| Uman Regiment | Уманський | 1648-1675 | ||
| Pavoloch Regiment | Паволоцький | 1648-1675 | ||
| Poltava Regiment | Полтавський | 1648-1675 | ||
| Lubny Regiment | Лубенський | 1648-1781 | ||
| Nizhyn Regiment | Ніжинський | 1648-1782 | ||
| Pryluky Regiment | Прилуцький | 1648-1782 | ||
| Chernihiv Regiment | Чернігівський | 1648-1782 | ||
| Kropyvna Regiment | Кропивнянський | 1649-1658 | ||
| Chechelnyk Regiment | Чечельницький | 1650-1673 | ||
| Novhorod Regiment | Новгородський | 1653-1654 | ||
| Belarus Regiment | Білоруський | 1654-1659 | ||
| Pinsk–Turiv Regiment | Пінсько-Турівський | 1654-1659 | ||
| Starodub Regiment | Стародубський | 1654-1782 | ||
| Kremenchuk Regiment | Кременчуцький | 1661-1666 | ||
| Hlukhiv Regiment | Глухівський | 1663-1665 | ||
| Zinkiv Regiment | Зіньківський | 1671-1782 | ||
| Fastiv Regiment | Фастівський | 1684-1712 | ||
| Bohuslav Regiment | Богуславський | 1685-1712 |