Most schools of Islamic law require a woman, particularly one marrying for the first time, to have a wali - typically her father or another close male relative - involved in contracting her marriage, based on the Prophet's statement that "there is no marriage without a guardian" (Sunan Abu Dawood 2085). The wali's role, however, is to represent and protect the woman's interests, not to override her will: her explicit consent is required for the marriage to be valid, and a marriage forced upon her without genuine agreement can be annulled. The Quran itself rebukes guardians who try to block a woman from remarrying a suitable partner of her choosing (2:232), showing that the wali's authority is meant to safeguard rather than obstruct her decision. The Hanafi school takes a notably different position, holding that a mature, sane woman may contract her own marriage without a wali, though even Hanafi jurists recommend guardian involvement as good practice. Where a father is absent, unsuitable, or refuses without valid religious reason, a qualified judge or Islamic authority can act as wali instead.
Q&A · Family
What is the role of a wali (guardian) in a woman's marriage?
References
Sunan Abu Dawood 20852:232
Informational, not a personal fatwa. Consult a qualified scholar for rulings on your situation.