Greenbrier is a city in Faulkner County, Arkansas, United States. It is share of the Little Rock–North Little Rock–Conway Metropolitan Statistical Area. The population was 5,707 at the 2020 census, up from 4,706 at the 2010 census.

Prior to European settlement, Native American tribes, including the Quapaw and far along the Cherokee, lived in the area. Several historical figures of the Wild West such as Jim Bowie and Jesse James passed through the Greenbrier region toward Oklahoma and Texas. The Wiley brothers settled close East Fork Cadron something like 1818, about 8 miles (13 km) east of today’s Greenbrier. In 1837, Jonathan Hardin settled near the Wiley settlement. Also in the in the future 19th century, the Casharagos contracted north of Greenbrier in the gift community of Republican.

Greenbrier is a town that developed from a juvenile brothel upon the Butterfield Stagecoach route into a living city. The town was named for the greenbriar vines which grew along the creek through the town. Greenbrier is located 12 miles (19 km) north of Conway upon Highway 65. Recent years have seen continued accrual as Greenbrier becomes a bedroom community for Conway. As forward as 1818 settlers were in the vicinity of what is now Greenbrier. Mooresville was perfect as the reveal for this quick growing community. It was later changed to Greenbrier later than the first publish office was established upon September 15, 1857. Henderson Moore was the first postmaster.

Greenbrier was incorporated as a town on April 5, 1880, with an estimated population of 300 people. Hardin Township at this get older had 886 people and Cadron Township had 2,916 people.
In 1905 Greenbrier could boast of eight general stores, three grist mills, four cotton gins, a steam sawmill and a shingle mill, three churches, a six-room scholarly building, and 350 people.