Meaning and history
Dagmar comes from the Old Norse name Dagmær, formed from dagr “day” and mær “maid.” It was adopted by the popular Bohemian wife of the Danish king Valdemar II when they married in 1205; her birth name was Markéta.
Dagmar moved from #855 to #993 for girls between 1911 and 1915. That year also produced its highest recorded birth count, at 45.