Dalkena had its start in the late 1800s when a sawmill opened at the site. The community's name is an amalgamation of Dalton and Kennedy, the proprietors of the mill. A post office called Dalkena was established in 1903, and remained in operation until 1942.
- U.S. Geological Survey Geographic Names Information System: Dalkena, Washington
- Meany, Edmond S. (1923). Origin of Washington geographic names. Seattle: University of Washington Press. p. 62.
- "Post Offices". Jim Forte Postal History. Archived from the original on 6 March 2016. Retrieved 29 July 2016.