Sužionys is a village in Vilnius District Municipality, Lithuania, it is located only about 23 kilometres (14 mi) north of Vilnius city municipality. According to the 2021 census, it had population of 397, a decrease from 449 in 2011, and 608 in 1987.

Environs of Sužionys were inhabited from the 1st millennium BC. Sužionys Hillfort [lt] with archaeological remains of an ancient settlement is situated near the village. Sužionys itself was mentioned for the first times in written sources in 1554. A modest neoclassical church, that is now standing, was built in 1795.