Sheil is an unincorporated community in Ralls County, in the U.S. state of Missouri.[1]
Variant names were "Shiel" and "Sidney".[1] A post office operated under the name "Sidney" as early as 1855. The name was changed to "Shiel" in 1898, and the post office was discontinued in 1910.[2] Shiel was named after a local priest.[3]