Arkansas Highway 113 (AR 113 and Hwy. 113) is a north–south state highway that runs in Central Arkansas. The route runs 29.48 miles (47.44 km) from Arkansas Highway 10 to Morrilton. This also gives access to some rural areas west of Morrilton. It runs through Pulaski, Perry, and Conway Counties. It contains no spur of business routes.

AR 113 begins near Lake Maumelle west of Little Rock. It runs north 5.8 miles (9.3 km) to Wye where AR 300 forms a concurrency. The route then continues heading north for 3.2 miles (5.1 km) to Pleasant Valley where AR 300 continues west. AR 113 continues heading north and heads through Bigelow, Arkansas and then joins with AR 60 west to Houston.

In Houston, AR 113 departs AR 60 and heads north again to where it meets AR 9 south of the Arkansas River. It crosses the Arkansas River into Morrilton. There, it joins US 64 for a short time then departs west to run on its own course parallel to that highway. It joins back up with US 64 near Blackwell.

The route was not one of the original 1926 state highways, but instead was first numbered as Arkansas Highway 113 on the 1928 Arkansas State Highway Map. The route ran from AR 10 north to Bigelow and was labeled 'impassable'. Between 1943 and 1945, the highway was extended to Morrilton. The segment along US 64 was added in 1963.