Mount Zion Missionary Baptist Church is a historic church at 409 S. Main Street in Brinkley, Arkansas. It is a red brick building with front facing gable roof, and a pair of square towers flanking the main structure. The left tower is slightly taller, an intentional element of the design that was maintained when one tower had to be shorted by removal of its belfry. The towers are joined by a three-bay porch sheltering the building's main entrance. The church was built in 1909 for an African-American congregation established in 1886, and has been a major cultural focus for that community since.