Jacksonville
- Country: United States
- State: Arkansas
- Population: 28,518 (2016)
- Latitude: 34° 52' N (34.8662°)
- Longitude: 92° 6.6' W (-92.11015°)
- Elevation: 87 m/286 ft. above sea level
- Time zone: America/Chicago (UTC -06:00); DST observed (UTC -05:00)