Connelsville is an unincorporated community in Nineveh Township, Adair County, Missouri, United States.

Shuteye Creek flows past the north side of the town and its confluence with the Chariton River is about one mile to the east.

[4] Connelsville was laid out in 1902 next to the older town of Nineveh, soon after the railroad was extended to that point.

[6] A post office was established at Connelsville in 1902, and remained in operation until 1937.

This Adair County, Missouri state location article is a stub.