Eleanor's father is from Abia State, Nigeria, and her mother is from Jamaica. They both met in London when her father was studying Veterinary Medicine at the University of London and her mother at the time was training to be a nurse.
She attended several schools due to her father's job and the interruptions of the Nigerian Civil War. She attended Queen’s School, Enugu; Saint Louis Grammar School, Ibadan; and the International School, University of Ibadan. She got her first degree in Medicine at the University of Nigeria, Nsukka. She received a master’s degree in Human Rights at the European Inter-University Centre in Venice, Italy.
She has worked anaesthetic registrar in the UK. She worked with hospitals under the South East Kent Health Authority, including Dover, Folkestone and Ashford. She works with human right organizations to advocate against rape, FGM and other acts of violence against women. She is the president of Windows Development Organization. She was is a member of the Every Woman Treaty’s steering committee which advocated for the Violence Against Persons Prohibition Act which was passed to include punishment for harmful traditional practices against women.
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- Adegun, Aanu (2020-03-10). "Buhari receives president of international women organisation". Legit.ng - Nigeria news. Retrieved 2020-03-11.
- "Doctors protest stripping of colleague naked in Abuja". Punch Newspapers. Retrieved 2020-03-11.
- Omotayo, Joseph (2020-03-09). "Nigerian Nwadinobi is head of 100-yr-old int'l group fighting for women's rights". Legit.ng - Nigeria news. Retrieved 2020-03-11.
- "I was charmed by my husband's focus, humility–Nwadinobi, Medical Women's International Association President-elect". Punch Newspapers. Retrieved 2020-03-11.
- "Foundation adopts entertainment to tackle FGM". Vanguard News. 2018-02-07. Retrieved 2020-03-11.
- "Violence is a public health emergency — Dr Nwadinobi". Vanguard News. 2019-06-20. Retrieved 2020-03-11.
- "Not Yet Uhuru with Widows' Rights - Eleanor Nwadinobi". Vanguard News. 2012-07-26. Retrieved 2020-03-11.
- "Activists Campaign for Treaty to End Violence Against Women | Voice of America - English". www.voanews.com. Retrieved 2020-03-11.
- AP, Edith M. Lederer |. "Activists campaign for treaty to end violence against women". Washington Post. Retrieved 2020-03-11.