Arkansas Highway 118 (AR 118) is a designation for two state highways in the Upper Arkansas Delta. One segment of 41.43 miles (66.68 km) runs from U.S. Route 64 (US 64) east to Mississippi County Road 495 near the Mississippi River levee. A second segment of 4.29 miles (6.90 km) runs from US 70 in West Memphis north to US 64 in Marion. Both routes are maintained by the Arkansas State Highway and Transportation Department (AHTD).

Highway 118 begins at US 64 in the northeast corner of Earle within Crittenden County in the Arkansas Delta. The route runs northeast to Heafer, where it has an intersection with Highway 42 before curving due north and running as a section line road and entering Poinsett County.

Entering Poinsett County, Highway 118 runs north to Highway 322, which serves as a frontage road for Interstate 555 in southern Tyronza. Highway 118 meets I-555 at an exit before entering downtown Tyronza. The highway passes three historic properties and continues north before turning due east and entering Mississippi County.

Now heading west, AR 118 meets AR 135, AR 308, and AR 77 before crossing Interstate 55. After I-55, AR meets US 61 in Joiner. The route continues east to Black Cat, the Mississippi River and Tennessee.

Highway 118 begins at US 70 in West Memphis near Mid-South Community College. The route heads north to an interchange with Interstate 40 (I-40), as well as unsigned US 79. The highway continues north to Marion, running along the western city limits before an intersection with US 64.

County	Location	mi	km	Destinations	Notes
Crittenden	Earle	0.00	0.00	US 64 / AR 149 south (Second St) – Parkin, Crawfordsville	Western terminus
	Heafer	9.42	15.16	AR 42 – Turrell
Poinsett	Tyronza	17.30	27.84	AR 322 west – Mount Olive
		17.42	28.03	I-555 – Memphis, Jonesboro
	​	21.50	34.60	AR 135 – Tyronza, Lepanto
Mississippi	Whitton	24.51	39.45	AR 308 east – Birdsong	AR 308 western terminus
	​	25.77	41.47	AR 77 – Turrell, Etowah
	​	29.92	48.15	I-55 – Turrell, Blytheville
	Joiner	31.74	51.08	US 61 – Frenchman's Bayou, Wilson
	Black Cat Landing	41.43	66.68	CR 495	Eastern terminus
Gap in route
Crittenden	West Memphis	0.00	0.00	US 70 (Broadway Ave) – Jennette, Memphis	Western terminus
		0.99	1.59	I-40 (US 79) to I-55 – Memphis, Little Rock
	Marion	4.29	6.90	US 64 (Old Military Rd) – Crawfordsville	Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

• List of state highways in Arkansas

Media related to Arkansas Highway 118 at Wikimedia Commons