The Ossoliński Palace is a historic building located in Lviv, Ukraine. Constructed in the 18th century, it showcases a blend of Baroque and Neoclassical architectural styles. The palace was originally built for the Ossoliński family, a prominent noble family in the region. Today, the Ossoliński Palace houses the Ossolineum, a cultural institution that includes a library and a museum. It is known for its extensive collection of manuscripts, books, and artworks, making it an important center for research and preservation of Polish heritage in Lviv.