Germaine \ge-rmai-ne, ger-maine\ as a girl's name (also used as boy's name Germaine), is pronounced jer-MAYNE. It is of Latin and French origin. Feminine form of Germain, from a Roman name meaning "brother". May also mean "from Germany". Saint Germaine (16th century) was a French shepherdess. Modern use may be homage to famous author and feminist Germaine Greer.
For more information, see also the related name Charmaine.