Prienai is a city in Lithuania situated on the Nemunas River, 29 km (18 mi) south of Kaunas. In 2023 the city had 8,894 inhabitants. The name of the city is a derivative from a surname Prienas. Pociūnai Airport is associated with the city.

The Neman, Niemen, Nyoman, Nemunas or Memel is a river in Europe that rises in central Belarus and flows through Lithuania then forms the northern border of Kaliningrad Oblast, Russia's western exclave, which specifically follows its southern channel. It drains into the Curonian Lagoon, narrowly connected to the Baltic Sea. The 937 km (582 mi) long Neman is a major Eastern European river. It flows generally west to Grodno within 12 kilometres (7.5 mi) of the Polish border, north to Kaunas, then westward again to the sea.