Christoffer \ch-ris-toffer, christ(of)-fer\ as a boy's name is a variant of Christopher (Greek), and the meaning of Christoffer is "bearing Christ".
The baby name Christoffer sounds like Christofer, Kristoffer and Cristofer. Other similar baby names are Christer, Kristofer, Christophe, Christoforo, Christof, Cristopher, Cristofor and Khristopher.