Mumbi Ngugi is a judge of the High Court of Kenya and co-founder of the Albinism Foundation for East Africa.
Mumbi was appointed a High Court judge in 2011.
In 2019, in a year that was high-profile corruption prosecutions, Ngugi spelled doom for governors and public officers facing corruption related charges in her ruling that instructed that elected executives could not continue holding office while at the same time facing corruption charges.
Ngugi has been at the forefront in the fight against corruption.
In 2020 she disqualified herself from hearing an application filed by Nairobi Governor Mike Sonko after he pointed out that she will not be fair if allowed to hear and determine the application.
She openly discussed the impacts of Kenya's new constitution upon social and health equality within the country at a webinar hosted by the Petrie-Flom Center for Health Law Policy, Biotechnology, and Bioethics at Harvard Law School.
Ngugi has been an advocate for women, socially disadvantaged persons, and the albinism community.