The Boko haram insurgency has ravaged and devastated most of the states of the North east Nigeria, with Borno State badly affected being the epicenter of the crisis. The insurgent group started by protesting against corruption and inequality in the state structures and called for a return to a more Islamic way of life. The group later became a violent terrorist group, declaring control over territories, kidnapping, metting out violence against women and girls including sexual violence and forced marriage. The paper examined the security situation, resulting humanitarian crises and the economic, physical, and psychological impact of insurgency on women and girls in Northeast Nigeria. The paper is doctrinal, with recourse being had to textbooks, journal articles, internet, documentaries and commentaries. The work also interrogated the response effort, extant laws and international legal standards on the subject matter. The paper finds that women and girls are worse affected by the insurgency and the patriarchal ideology of oppression and subordination of women and girls that existed before the conflict has been a major factor in the attention paid to women and girls issues in the crisis situation. The paper recommends among others, the domestication of protection laws by the affected states of the Northeast and an expansion of the gender responsiveness in the humanitarian response efforts by all stakeholders in order to address the disparity in the needs and vulnerabilities of women and girls.