Mardenis is an unincorporated community in Union Township, Huntington County, Indiana.
Mardenis was named for William Mardenis, a railroad agent. A post office was established at Mardenis in 1884, and remained in operation until it was discontinued in 1904.
Mardenis is located at 40°54′15″N 85°24′49″W / 40.90417°N 85.41361°W.
- ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31.
- ^ "Mardenis, Indiana". Geographic Names Information System. United States Geological Survey. Retrieved 2009-10-17.
- ^ Bash, Frank Sumner (1914). History of Huntington County, Indiana: A Narrative Account of Its Historical Progress, Its People, and Its Principal Interests. The Lewis Publishing Company. p. 159.
- ^ "Huntington County". Jim Forte Postal History. Retrieved 18 October 2014.