The Strossmayer Gallery of Old Masters is a fine art museum in Zagreb, Croatia exhibiting the collection donated to the city by Bishop Josip Juraj Strossmayer in 1884. Located at 11 Nikola Šubić Zrinski Square, it forms part of the Croatian Academy of Sciences and Arts .
The Strossmayer Gallery holding includes around 4,000 works, of which some 250 are on display, with the remainder in storage, or on display at other museums or gallery institutions in Croatia.