Clementina \c-lementi-na, cl(e)-men-tina\ as a girl's name is a variant of Clementine (French, Latin), and the meaning of Clementina is "merciful".
The baby name Clementina sounds like Klementina, Clementyna and Clementia. Other similar baby names are Klementijna, Clementyn, Clementya, Klementyna and Klementine.