­The title of “Women-only" could indicate unlawful gender-based discrimination, this article shows that the Muslim women advocates, and attendees of Women's Mosques has the right to establish and run this form of Mosques under International law. This article argues that this right and freedom shall be protected under International human rights law, and the allegations of being discriminatory against Muslim man cannot stand in front of the discrimination legal tests. This form of Mosques is also legitimate according to Islamic law. Islamic law does not consider women's Mosques discriminatory and does not prevent women from praying in congregation without men or leading each other. The major debate in Islamic law related to these Mosques is whether a woman can lead a man or not. This article explains the debate about these points among Muslim scholars and shows that it is not legitimate for women to lead men in prayers, or to raise the Adhan. Moreover, This article shows how does these Islamic rulesare a manifestation of Islam honoring of women.