What does Morgen mean?
Morgen \m(o)-rgen, mor-gen\ as a girls' name (also used as boys' name Morgen) is of Welsh and Old English origin, and the meaning of Morgen is "circling sea or great brightness; bright or white sea dweller". Morgen is a derivative of Morgan (Welsh, Old English).
Morgen is an unusual first name for women but a very prominent last name for both adults and children (#32609 out of 150436, Top 22%). (2000 U.S. Census)
The only popular related form of Morgen (#unlisted) listed in the Top 1000 is Morgan (#101 last year). Adoption of these girl names reached its peak in 1997 (usage of 0.978%) and has become much lower since (usage 0.899%, down 8.1%). Morgan (#101) is the most chic baby name in this list. Shown below is a comparison of the usage of Morgen and related names. (2014 Birth Statistics)