What does Arch mean?
Arch is a rare given name for men but a very popular surname for both adults and children (#19090 out of 150436, Top 13%). (2000 U.S. Census)
Shown below is the birth name popularity of Arch for boys. Arch reached its apex position of #265 in the U.S. then, but is not in the Top 1000 at the moment. (2014 Birth Statistics)
Below is a graphed analysis of the popularity of the boy name Arch and related names. Archer (#303 a year ago), Archibald and Archie are the prominent varying forms of Arch rated in the Top 1000. These boy names were at the top of their popularity during 1880-1889 (usage of 0.6323%) and are now much less popular (usage 0.1743%, down 72.4%), with the versions Arch, Archibald and Archie becoming less in vogue. Archer (#303) is the most trendy birth name among these, and there is a rekindling in baby name usage for this name. (2014 Birth Statistics)