What does Casimir mean?
Casimir \c(a)-si-mir\ as a boys' name is pronounced KAH-zee-meer. It is of Slavic origin, and the meaning of Casimir is "famous destroyer (of peace)". Associated with Poland for her famous 11th-century king, who brought peace to the nation. Also a saint's name (15th century).
For more information, see also the related boy name Casey.
Casimir has 1 feminine form: Kasmira.
Casimir is an unusual first name for men but a very prominent last name for all people (#17702 out of 150436, Top 12%). (2000 U.S. Census)
Charted below is the baby name popularity of Casimir for boys. Casimir was first listed in 1900-1909 and reached its top rank of #471 in the U.S. during 1910-1919, but is not ranked at the moment. (2014 Birth Statistics)
Below is a charted comparison of the usage of the boy name Casimir and corresponding names. The only other popular alternative form of Casimir ranked in the Top 1000 is Casey (#530 last year). These boy names were at the apex of their popularity during 1980-1989 (usage of 0.458%) and have become much less widespread since (usage 0.235%, down 48.7%), with the forms Casey and Casimir becoming less trendy. (2014 Birth Statistics)