Namesakes for Casimir
(prime minister) John Casimir Ehrnrooth
1881
(prime minister) Casimir Pierre Périer
1831-1832 
(prime minister) Édouard Mortier, duc de Trévise (a.k.a. Casimir)
1834-1835
(silver) Charles Poulenard (a.k.a. Casimir)
1912 4x400 m relay
Duke Kazimierz I the Restorer (a.k.a. Casimir)
1040-1058 
Duke Kazimierz II the Just (a.k.a. Casimir)
1177-1191; 1191-1194 
King Kazimierz III the Great (a.k.a. Casimir)
1333-1370 
King Kazimierz IV (a.k.a. Casimir)
1447-1492
Saint Kazimierz of Poland (a.k.a. Casimir)
1458-1484