The first name Jascha is ♀ female and ♂ male.
Jascha is a Slavic, especially Russian diminutive of the name Jakov, a Slavic form of Jacob. Besides, Jascha is a short form of the Polish name Jadwiga and thus also a girl’s name.
The boy’s name Jascha means “may God protect”, “holder of the heel” and “supplanter” (from Jakov or Jacob) and the girl’s name Jascha means “warrior in the war” (from Jadwiga).