Petrašiūnai is a neighborhood in the eastern part of the Lithuanian city of Kaunas.

Part of larger Petrašiūnai elderate which also consists with Amaliai, Palemonas and Naujasodis neighorhoods.

After the Kaunas Hydroelectric Power Plant was built in 1960, it grew rapidly and became one of the city's industrial centers.

The elderate borders Kaunas Reservoir and includes Pažaislis monastery ensemble.

The elderate contains the Petrašiūnai cemetery, where many distinguished Lithuanian political and social activists are buried.