Varna is a village in Marshall County, Illinois, United States. The population was 436 at the 2000 census. It is part of the Peoria, Illinois Metropolitan Statistical Area. Included in the Postal Zone of Varna is the nearby community of Lake Wildwood.
Varna is located at 41°2′12″N 89°13′29″W / 41.03667°N 89.22472°W / 41.03667; -89.22472 (41.036562, -89.224779).
According to the United States Census Bureau, the village has a total area of 0.3 square miles (0.8 km²), all of it land.