Glenwood is a city in Pike and Montgomery counties in Arkansas, United States. As of the 2020 census, its population was 2,068. The community is located along the Caddo River in the Ouachita Mountains.

Glenwood was formed as a boomtown as soon as the progress of the Gurdon and Fort Smith Railroad and timber interests in the area. After the inauguration of a lumber mill, the community received a name office and incorporated in April 1909. Although the community motto its major employer leave during the Great Depression, the city has another time seen quick growth in recent decades. The city in addition to sees significant tourism connected to its scenic slant in the Ouachitas and in the course of several recreational lakes.

Glenwood is located in the northeast corner of Pike County at 34°19′41″N 93°32′54″W / 34.32806°N 93.54833°W / 34.32806; -93.54833 (34.328029, -93.548412). Four small portions of the city extend north into Montgomery County. U.S. Route 70 passes through the city south of its center; it leads northeast 32 miles (51 km) to Hot Springs and southwest 56 miles (90 km) to De Queen. Arkansas Highway 8 passes through the city center, leading northwest 13 miles (21 km) to Norman and southeast 35 miles (56 km) to Arkadelphia.

According to the United States Census Bureau, the city has a total area of 9.08 square miles (23.52 km), of which 8.91 square miles (23.08 km²) are estate and 0.17 square miles (0.44 km), or 1.89%, are water. The Caddo River passes through the west side of the city, flowing southeast to member the Ouachita River north of Arkadelphia.