Haynes is a town in Lee County, Arkansas, United States.

Arkansas Highway 1 passes through the town, leading south 9 miles (14 km) to Marianna, the county seat, and north the same distance to Forrest City.

According to the United States Census Bureau, Haynes has an area of 0.35 square miles (0.90 km2), all land.

The racial makeup of the town was 14.95% White and 85.05% Black or African American.

About 30.0% of families and 42.1% of the population were below the poverty line, including 54.4% of those under the age of eighteen and 50.0% of those 65 or over.