Louann is a town in Ouachita County, Arkansas, United States.

According to the United States Census Bureau, the town has a total area of 0.6 km2 (0.23 sq mi), all land.

As of the 2010 United States Census, there were 164 people living in the town.

19.7% of all households were made up of individuals, and 9.9% had someone living alone who was 65 years of age or older.

About 44.4% of families and 45.0% of the population were below the poverty line, including 66.2% of those under the age of eighteen and 46.2% of those 65 or over.