Gender / Sex: girl (Shannan's also a boy name)
Meaning: old, ancient
Sounds Like: Shannin, Shannen
Similar Names: Shannae, Shannah, Shanna
Rank as First Name (Given Name): 1841
Shannan \sh(an)-nan\ as a girl's name (also used as boy's name Shannan), is a variant of Shannon (Gaelic), and the meaning of Shannan is "old, ancient".
The baby name Shannan sounds like Shannin and Shannen. Other similar baby names are Shannae, Shannah and Shanna.
Shannan is a very popular first name for women (#1841 out of 4276) but an uncommon surname or last name for both men and women. (1990 U.S. Census)