Meaning and name origin
Irmgard \i-rmga-rd, ir(m)-gard\ as a girl's name is of Old German origin, and the meaning of Irmgard is "whole enclosure; entire, universal". Irmgard is a variant of Ermengard (Old German): from erm(en) gard. Also a variant of Irma (Old German): short form of names containing irm(en) or erm(en), like Ermintrude.
Irmgard is a somewhat popular first name for females (#2139 out of 4276, Top 50%) but an uncommon surname or last name for all people (2000 U.S. Census).
Displayed below is a comparison of the popularity of the girl name Irmgard and its variant forms. The only popular variation form ranked in the Top 1000/100 is Irma. (2014 statistics).