Guess so, although
Tasnim is a girls' name in Arabic. Maybe Tasmin is Berber?
For those who don't know, Berbers are the original inhabitants of Northwest
Africa. They speak their own languages separate from Arabic (although they use that as a second language), and look very different from most Arabs, with some even looking very European. A number of the North Africans in
France are actually Berbers. Some Berbers still use names from Berber languages, such as Kahina for girls.