Mercy Wanjau, MBS

About Me

Meet Mercy Wanjau

Mrs. Mercy Wanjau is the Secretary to the Cabinet of the Republic of Kenya. She was appointed to this role in October 2022.

She is a commercial lawyer, regulatory and governance expert whose career spans over 20 years. She has worked in the private and public sectors, both at local and international levels, where she has recorded a history of success and transformational impact.

From 2019 to 2021, she served as the Director General (in an acting capacity) of the Communications Authority of Kenya (CA), the State Agency responsible for regulating the ICT Sector. During this period, she steered the institution to new heights despite the challenges presented by the ravaging effects of the Covid-19 pandemic. Notably, she led the passage of regulatory directives in the ICT sector that anchored technology as critical infrastructure, and ensured the country’s business continuity at the height of the pandemic.

She also previously served as the Director/Legal Services at CA, after having risen through the ranks through the years. Her service in the various roles she held profoundly contributed to shaping the ICT sector’s regulatory agenda, and contributed to setting the foundation for Kenya’s recognition as a leading digital hub in Africa.

A Certified Secretary and Professional Mediator, she has previously consulted with KPMG South Africa, Pricewaterhouse Coopers (Kenya) and also had a stint in commercial legal practice. She has also served on international secondment at the International Telecommunications Union (ITU), the UN specialized agency for ICTs, based in Geneva, Switzerland.

She has served as a Chairperson and Member on numerous Boards and Advisory Committees including; Chairperson of the Taskforce for the Development of a Data Protection and Privacy Framework for Kenya, Chair of the ITU’s Global Symposium of Regulators (2021), Chair of the Universal Postal Union’s Committee 4 on Conventions (2021) and the Chair of the Covid ICT Sector Advisory Committee (2020) among many others.

She is a graduate of the University of Nairobi (LLB Hons), University of Cape Town (LLM) and Strathmore Business School.

In addition, she is an Eisenhower Fellow and a published author with the ITU and the United Nations Conference on Trade and Development (UNCTAD).

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Kenya School of Government Certificate, Senior Management Course No. 152/2022 May 2022 – Jun 2022
Strathmore Business School, Kenya Advanced Management Programme (AMP) Jan 2012 – Dec 2012
University of Westminster, London, UK Postgraduate Certificate, Regulation of Telecommunications in Developing and Transitional Economies Jan 2001 – Dec 2001
University of Cape Town, South Africa Master of Laws, LLM, (Advanced Corporate Law and Tax) Jan 1998 – Dec 1998
University of Nairobi, Kenya Bachelor of Laws (LLB) Hons Nov 1990 – Dec 1995
Ngandu Girls High School, Kenya KCSE Jan 1986 – Nov 1989

Work Experience


The Government of Kenya The Secretary to the Cabinet of the Republic of Kenya Oct 2022 – Present
Communications Authority of Kenya Director, Legal Services and Corporation Secretary Oct 2021 – Sep 2022
Communications Authority of Kenya Ag. Director General Aug 2019 – Sep 2021
Communications Authority of Kenya Director, Legal Services and Corporation Secretary Mar 2019 – May 2020
Communications Authority of Kenya Ag. Director, Legal Services and Corporation Secretary Jan 2018 – Feb 2019
United Nations, International Telecommunication Union, Switzerland Regulatory Specialist (International Secondment) Jul 2005 – Jun 2006
Communications Authority of Kenya Assistant Director, Regulatory and Governance Dec 2002 – Dec 2017
Communications Commission of Kenya Senior Legal Officer Jan 2001 – Dec 2002
PricewaterhouseCoopers, Kenya Legal and Tax Consultant Dec 1999 – Dec 2000
Kirundi and Company Senior Legal Associate Jan 1999 – Nov 1999
KPMG, South Africa Junior Consultant Jan 1998 – Dec 1998
Muthoga Gaturu & Company Legal Associate Feb 1997 – Jan 1998


The Institute of Certified Secretaries Council Member Jun 2017 – Jun 2020
ICT Board (Now ICT Authority) Non Executive Director Nov 2009 – Feb 2013
Multimedia University of Kenya Council Member (Alternate to the Director General, Communications Commission of Kenya) Nov 2008 – Mar 2013

Licenses & Certifications

CDI-Africa Coaching Group Certified Professional Coach (CPC) May 2020 – Present
Mediation Training Institute at Eckerd College Certified Professional Mediator Nov 2017 – Present
The Institute of Certified Secretaries Accredited Governance Auditor Feb 2017 – Present
Centre for Corporate Governance Certificate in Corporate Governance Oct 2006 – Present
The Institute of Certified Secretaries Member May 1997 – Present
Law Society of Kenya Member Feb 1997 – Present


The President of Kenya Moran of the Order of the Burning Spear, MBS Dec 2020
Eisenhower Fellowships Eisenhower Fellowship for International Leadership Mar 2006

Community Service

SOS Children's Villages Member of the Board Of Trustees Apr 2016 – Present


  • Policy
  • Strategic Planning
  • Corporate Governance
  • Thought Leadership
  • Contract Negotiation
  • Team Leadership
  • Project Management
  • Team Management
  • Corporate Law
  • Leadership


  • English
  • Kiswahili
  • French
  • Kikuyu

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