Kelley Branch is a stream in northern Boone County in the U.S. state of Missouri. It is a tributary of Silver Fork.
The stream headwaters arise just northeast of Hallsville at 39°07′11″N 92°12′40″W / 39.11972°N 92.21111°W and the stream flows generally west to its confluence with Silver Fork just east of US Route 63 approximately 12 miles north of Columbia at 39°07′53″N 92°19′15″W / 39.13139°N 92.32083°W.
Kelley Branch has the name of the local Kelley family of settlers.
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