Mikka is a ♀ girl’s name and a ♂ boy’s name. Mikka thus belongs to the gender-neutral unisex names. What is the origin of the name Mikka? The boy’s name Mikka is a Finnish short form of the Hebrew name Michael. Mikka is also a feminine name, e.g. in Denmark or America and derived from Michaela. What does the name Mikka mean?