Smackover is a city in Union County, Arkansas, United States. According to the 2006 Census Bureau estimates, the population of the city stands at 1,929. The Census Bureau placed the 2010 population at 1,865.
Smackover was incorporated in 1922. The name Smackover comes from an anglicization of the French "Sumac Couvert" which translates to "covered in sumac". It has frequently been noted on lists of unusual place names.