The Merrill Shell Bank Light was a screw-pile lighthouse which once stood on its eponymous shoal in the Mississippi Sound, west of Cat Island and south of Pass Christian, Mississippi.

The shoal was first marked by the hull of the former revenue cutter McLane serving as a lightship beginning in 1847, but this was replaced by a screw-pile light in 1860.

The light was extinguished by the Confederates but was undamaged, and was re-lit in 1863.

[3] In 1932 it was automated, and in 1945 the house was removed and replaced by a skeleton tower on the same foundation.

[4] This tower was damaged by the hurricanes of 2005 and was discontinued in 2007.