The first name Janne is ♀ female and ♂ male.
Janne is a Frisian and Nordic name and suitable for girls (e.g. in Norway, Denmark, Estonia) and boys (e.g. in Finland, Sweden). It is a short form of the Hebrew names Johanna or Johannes. In Germany it is mostly a feminine name and as well a short form of Marianne.
Janne means Yahweh is gracious” (from Hebrew “jô/יֹו” = referring to the Hebrew God + “chanan/חָנַן” = to be gracious/to show favor). Besides, Janne means “sea of bitterness”, “drop of the sea”, “star of the sea”, “rebelliousness”, “exalted one”, “wished for child” and “grace”, “favor” (from Marianne).