The Lančiūnava-Šventybrastis Forest (Lithuanian: Lančiūnavos–Šventybrasčio miškai) is a forest in Kėdainiai District Municipality, central Lithuania, located 10 kilometres (6.2 mi) north east to Kėdainiai, around Lančiūnava and Šventybrastis villages.

The main rivers, draining the forest, are the Malčius, the Alkupis, the Suleva, the Šumera.

[1] The fauna of the forest consists of wild boar, roe deer, moose, red fox, raccoon dog, gray wolf, pine marten, badger, hare, squirrel, beaver, also there are cranes, grey-headed woodpeckers, white-backed woodpeckers, middle spotted woodpeckers, corn crakes, black storks, white-tailed eagles, European honey buzzards, lesser spotted eagles.

The Lančiūnava Oak Tree grew in the forest (a nature heritage monument since 1960 but decayed around 2018).

The villages of Lančiūnava, Lepšynė, Užvalkiai, Rudžiai, Būdai, Milžemiai, Pagilupys, Gaisai, Grąžčiai, Lalai and Stebuliai are inside the forest or on its edges.