What does Greg mean?
Greg /greg/ [1 syll.] as a boys' name is of Latin and Greek origin, and the name Greg means "watchful, vigilant". Greg is a variant transcription of Gregory (Latin, Greek). Compare surname Grogg.
How popular is Greg?
Greg is a very popular first name for males (#174 out of 1220, Top 14%) and also a very popular surname for both adults and children (#36381 out of 150436, Top 24%). (2000 U.S. Census)
Charted below is the baby name popularity of Greg for boys. Greg entered the list in 1940-1949 and reached its top position of #105 in the U.S. during 1960-1969, but is not ranked at the moment. (Top 1000 Baby Names Statistics, 2014)
Prominent alternative forms of Greg are Gregg, Greggory, Gregor, Gregorio and Gregory (#316 in 2014). Usage of these boy names reached its peak during 1960-1969 (usage of 0.5328%) and has become significantly lower since (usage 0.114%, down 78.6%), with the versions Greg, Gregg, Greggory and Gregorio becoming less in vogue. Gregory (#316) is the most chic baby name in this compilation. Displayed below is an analysis of the usage of Greg and related names. (Top 1000 Baby Names Statistics, 2014)