State Route 56 (SR 56) is a 27.696-mile-long (44.572 km) state highway completely within Washington County in the southwestern part of the U.S. state of Alabama. The western terminus of the highway is at the Mississippi state line at an intersection with U.S. Route 45 (US 45) and Mississippi Highway 42 (MS 42). The eastern terminus of the highway is at Wagarville, where it intersects US 43.

SR 56 was part of US 84 until 1958, when the Coffeeville Bridge opened over the Tombigbee River.

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SR 56 enters Alabama at the Mississippi state line where Mississippi Highway 42 intersects US 45. The highway heads eastward as it approached Chatom, the county seat of Washington County. East of Chatom, the highway travels through rural areas until it reaches its eastern terminus at US 43 in Wagarville. The highway is aligned along a two-lane road for its entirety.

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The entire route is in Washington County.

Location	mi	km	Destinations	Notes
​	0.000	0.000	MS 42 west – State Line	Mississippi state line
Chatom	13.369	21.515	SR 17 north – Butler	West end of SR 17 concurrency
	13.418	21.594	SR 17 south – Mobile	East end of SR 17 concurrency
Wagarville	27.696	44.572	US 43 (SR 13) – Jackson, Mobile	Eastern terminus
1.000 mi = 1.609 km; 1.000 km = 0.621 mi       Concurrency terminus

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