Ivaniškis is a village in Biržai District Municipality, in Panevėžys County, Lithuania. Ivaniškis lies at 68 m above sea level. The nearest city is Panevėžys, 73 km to the southwest. Among the landmarks around are Church of the Assumption of Mary in Skaistkalne (11.2 km), Biržai Castle (16.5 km) and Rundāle Palace (49 km). Among the natural features are Jurgis Bielinis oak (7.7 km).