Olliver \o-lli-ver\ as a boy's name is a variant of Oliver (Latin), and the meaning of Olliver is "olive tree".
The baby name Olliver sounds like Ollivor, Olivor, Olivier and Olivero. Other similar baby names are Allvar, Bolivar, Bollivar, Culver, Colver, Glover, Halver, Olave, Olivio, Oliviero, Oliverio, Silver and Sylver.