What does Colum mean?
Colum \c(o)-lum\ as a boys' name is of Irish and Gaelic origin. Short form of Latin Columba (see Calum) or Columban. Used in reference to Saint Columba (sixth century) of Ireland, who founded the monastery of Iona. Actor from "Star Trek: Deep Space Nine" Colm Meaney; actor Colm Wilkinson.
For more on this name, see also the related boy name Culver.
Colum is an uncommon given name for men. Colum is a rare surname too for both adults and children. (2000 U.S. Census)
Callum (#729 the previous year), Colm and Calum are the prominent variation forms of Colum (#unlisted). These boy names are at the height of their popularity presently. Callum (#729) is the most chic name for newborns in this compilation. Below is a graphed analysis of the popularity of Colum and related names. (Top 1000 Baby Names Records, 2014)