What does Kasimir mean?
Kasimir /ka-si-mir/ [3 sylls.] as a boys' name is pronounced KAZ-e-meer. It is of Slavic origin, and the meaning of Kasimir is "famous destroyer (of peace)".
Variant of Casimir (Slavic) "bring peace". The name of the patron saint of Poland; also a favored name of Polish royalty. See also Casimir.
How popular is Kasimir?
Kasimir is a rare first name for men. Kasimir is an equivalently rare last name too for both adults and children. (2000 U.S. Census)
Below is a graphed comparison of the popularity of the boy name Kasimir and affiliated names. The only popular variation form of Kasimir (not ranked) is Casimir. Forms like Casmire are uncommon. This boy name was at the top of its popularity during the years 1910-1919 (usage of 0.529%) and is now significantly less popular, with Casimir becoming less stylish. (Top 1000 Birth Names Statistics, 2014)