| Raudondvaris | |
| Settlement Type: | Town |
| Pushpin Map: | Lithuania |
| Coordinates: | 54.9431°N 23.7833°W |
| Pushpin Map Caption: | Location of Radondvaris |
| Subdivision Type: | Country |
| Subdivision Type1: | Ethnographic region |
| Subdivision Name1: | Aukštaitija |
| Subdivision Type2: | County |
| Subdivision Name2: | Kaunas County |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Kaunas district municipality |
| Subdivision Type4: | Eldership |
| Subdivision Name4: | Raudondvaris eldership |
| Subdivision Type6: | Capital of |
| Subdivision Name6: | Raudondvaris eldership |
| Established Date: | 1392 |
| Established Title: | First mentioned |
| Population Total: | 4,079 |
| Population As Of: | 2021 |
| Timezone: | EET |
| Utc Offset: | +2 |
| Timezone Dst: | EEST |
| Utc Offset Dst: | +3 |
Raudondvaris is a town on the Nevėžis River in Kaunas district, Lithuania, 1km (01miles) west of Kaunas city municipality.
The town was first mentioned in Teutonic chronicles in 1392. The old castle was rebuilt after the Battle of Grunwald and became Grand Duke's property. In 1549 Grand Duke Sigismund II Augustus presented the castle to his wife, Barbara Radziwiłł. After her death the castle fell to ruin. A new Renaissance red brick palace, known as Raudondvaris Castle, was built in 1615 on the high bank of the Nevėžis River by the Radziwiłłs. The palace is surrounded by a park with a palm house (no longer in use). The residence was known for its remarkable fine arts collection, including paintings by Leonardo da Vinci, Caravaggio, Rubens and del Sarto. The palace belonged to the Tyszkiewicz family until the end of World War I, when it was converted into a shelter for children. It suffered damage during World War II and was rebuilt only in 1959–1973. Currently it houses collections devoted to the Tyszkiewicz family and Juozas Naujalis.
Another notable building in Raudondvaris is the basilica of St. Theresa, founded by Benedykt Tyszkiewicz (rebuilt in the 20th century), with altars painted by Michał Elwiro Andriolli, and Tyszkiewicz family tombstones.