Edna Mills is an unincorporated community in Ross Township, Clinton County, Indiana.
A 1913 history of Clinton County describes Edna Mills as "a pleasant village" and offers the following origin of the town's name: <blockquote> The name has been in use for over half a century, and the oldest inhabitants of the vicinity say that when it was first made a postoffice, a Mr. Kellenbarger, who owned a mill at that point, gave it the name of Edna in honor of his wife. The location also used to be called facetiously "Blackberry". The occasion for this was that a blacksmith named Michaels had a shop there and his favorite tipple was blackberry brandy, making "Blackberry" the notable feature of the locality. </blockquote>
A post office was established at Edna Mills in 1861, and remained in operation until it was discontinued in 1905.