Pauls Valley is a city in and the county seat of Garvin County, Oklahoma, United States. The population was 6,187 at the 2010 census, a decline of 1.1 percent from 6,256 at the 2000 census. It was settled by and named for Smith Paul, a North Carolina native who married a Chickasaw woman and became a citizen of the Chickasaw Nation before the Civil War. The town economy is largely based on agriculture and oil production.