Caspar \c(a)-spar, cas-par\ as a boy's name is pronounced KAS-per. It is of Persian origin, and the meaning of Caspar is "treasurer". Dutch form of Jasper. In medieval tradition, Caspar was one of the three Magi or "wise men" who traveled from afar to find the baby Jesus. A 1960s TV series featured Casper the Friendly Ghost.
For more information, see also the related name Melchior.
A baby name that sounds like Caspar is Kasper.