Gillian Settlement is an unincorporated community in Johnson County, Arkansas, United States.
The community is located on Farm Road 1475 approximately 1.5 miles east of Arkansas Route 21 at 35°37′54″N 93°24′07″W / 35.63167°N 93.40194°W and an elevation of 1654 feet.[1] Clarksville is 10.6 miles to the south-southwest.[2]