Sumrall is a town in Lamar County, Mississippi. It is part of the Hattiesburg, Mississippi Metropolitan Statistical Area. The population was 1,421 at the 2010 census.
Sumrall was one of many new towns incorporated along the Mississippi Central Railroad during the first decade of the 20th century. Prior to the arrival of the railroad, founder Daniel Sumrall operated a grist mill along Mill Creek. In 1890, the federal government established a post office in the community and named it Sumrall. The J. J. Newman Company, headed by Fenwick Peck, chose the site as the location for a large sawmill. Situated in the heart of South Mississippi's pine belt, the location was ideal for just such a large mill. Evidence of the quality of timber in the area is supported by a prize-winning short leaf pine displayed at the 1904 World's Fair in St. Louis.