The name Casmir, pronounced KAZ-meer (/kæzˈmɪr/), derives from the Polish Kazimierz—literally “proclaimer of peace”—and carries a quietly historical gravitas that has made it both versatile and understated. As a unisex choice, it deftly bridges traditional gender boundaries without resorting to overt modern affectation, offering families a name that feels both time-honored and refreshingly singular. An examination of U.S. birth records reveals a pattern of gentle peaks and valleys—modest appearances in mid-20th-century rankings, a lull, then a subtle reemergence in the low hundreds of occurrences during the 2020s—suggesting that Casmir dances to the beat of its own cyclical rhythm rather than chasing prevailing trends. In the Anglo-American naming landscape, it stands akin to a well-worn heirloom: compact in syllables yet rich in cultural resonance, it lends a discreet sophistication to a child’s identity without ever vying for the spotlight.