What does Nachman mean?
Nachman is a rare given name for men but a very popular last name for all people (#30443 out of 150436, Top 20%). (2000 U.S. Census)
Below is a graphed analysis of the popularity of the boy name Nachman and related names. Menachem is the only popular variation form of Nachman (#unlisted) appearing in the Top 1000. These boy names were at the apex of their popularity in 1994 (usage of 0.166%) and are now less popular. (2014 Birth Statistics)
A recommended similar baby name is Lachman. Like Nachman, this name is not frequently used.