Silsbee is a town in Hardin County, Texas, United States. This city is 21 miles north of Beaumont. The population was 6,935 at the 2020 census. It is ration of the Beaumont–Port Arthur metropolitan area.

Silsbee is located in eastern Hardin County at 30°20′53″N 94°10′49″W / 30.34806°N 94.18028°W / 30.34806; -94.18028 (30.348095, –94.180220). U.S. Route 96, a four-lane bypass, forms the southeast affix of the city; the highway leads northeast 50 miles (80 km) to Jasper and south 20 miles (32 km) to Beaumont. Houston is 104 miles (167 km) southwest of Silsbee via Beaumont. Texas State Highway 327 runs through downtown Silsbee south of the city center, leading east to US 96 and west 9 miles (14 km) to Kountze, the Hardin county seat.

According to the United States Census Bureau, Silsbee has a total Place of 7.7 square miles (20.0 km), of which 0.04 square miles (0.1 km²), or 0.64%, are water.

Silsbee was first referred to as “Mill Town” when the site was reached by the Gulf, Beaumont, and Kansas City Railway in 1894. The town was renamed in salutation of Nathaniel Devereux Silsbee, an investor (and grandson of Sen. Nathaniel Silsbee) from Boston, Massachusetts, who helped manage to pay for funds for the railway. The railroad was a project of John Henry Kirby, who conventional the Kirby Lumber Company in the city. This business was the main employer and strength of the Silsbee economy from the city’s beginning.