The Mulberry River flows through the Ozark Mountains.
|- location||Newton County, Arkansas|
|- elevation||2,100 ft (640 m)|
|- location||Arkansas River|
|Length||70 mi (110 km)|
|- average||557 cu ft/s (15.8 m3/s)|
|Basin size||373 sq mi (970 km2)|
|Designated||April 22, 1992|
The Mulberry River is a 70-mile-long (110 km)  tributary of the Arkansas River in northwestern Arkansas in the United States. Via the Arkansas River, it is part of the watershed of the Mississippi River. It has been designated a National Wild and Scenic River. The drainage basin of the Mulberry River has an area of 373 square miles (970 km2) and the annual average mean flow of the river near its mouth is 557 cubic feet per second. 
According to the Geographic Names Information System, it has also been known as "Mulberry Creek". The United States Board on Geographic Names settled on "Mulberry River" as the stream's name in 1976. 
The Mulberry River flows for most of its length through the Ozark National Forest in the Ozarks. It rises in southwestern Newton County and initially flows generally westwardly through Johnson and Franklin counties. In Franklin County it turns southward into the valley of the Arkansas River and flows past the town of Mulberry. It joins the Arkansas about 3 miles (5 km) south of Mulberry, on the common boundary of Franklin and Crawford counties.
The Mulberry is a scenic and popular river for recreational boating with kayaks or canoes. The river varies greatly in its flow depending upon the season and recent precipitation, but the water level is usually adequate for paddling between mid-October and mid-June. Water quality is excellent. Forty-five miles of the river are floatable beginning at Wolf Pen Access and Recreation Area in the Ozark National Forest and continuing until near the river's mouth where it flows into the Arkansas River. There are Class I to III rapids at many points in the river and paddling can be hazardous if the water level is high. At low water the river is placid and barely flows. Several access points along the river offer camping and supplies.  Fishing for Smallmouth Bass and Green Sunfish is also popular.
- U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map, accessed June 3, 2011
- "Mulberry River near Mulberry Arkansas" USGS, accessed 31 July 2013
- U.S. Geological Survey Geographic Names Information System: Mulberry River
- "Southwest Paddler". Retrieved July 31, 2013.
- "Mulberry River". National Wild and Scenic Rivers System. Retrieved August 1, 2013.
- Columbia Gazetteer of North America entry
- DeLorme (2004). Arkansas Atlas & Gazetteer. Yarmouth, Maine: DeLorme. ISBN 0-89933-345-1.