The Marianna Commercial Historic District encompasses the historic civic and commercial heart of Marianna, Arkansas, the county seat of Lee County.

It comprises two blocks of Main Street and two blocks of Poplar Street, which cross at the northwest corner of Court Square, a city park where the Gen. Robert E. Lee Monument is found, and extends south to include a few buildings on Liberty Street.

The downtown developed a short distance west of the city's boat landing.

Court Square Park, a popular community meeting point, faces the Lee County Courthouse.

This article about a property in Lee County, Arkansas on the National Register of Historic Places is a stub.