Lena is a town in Oconto County, Wisconsin, United States.
According to the United States Census Bureau, the town has a total area of 33.4 square miles (86.5 km2), all of it land.
As of the census[1] of 2000, there were 769 people, 289 households, and 219 families residing in the town.
There were 303 housing units at an average density of 9.1 per square mile (3.5/km2).
20.1% of all households were made up of individuals, and 5.9% had someone living alone who was 65 years of age or older.