Harrison Kinyanjui: Kenyan Advocate, Notable Cases and Career

Harrison Kinyanjui is a Nairobi advocate whose name appears repeatedly in Kenyan court records and legal rankings, yet whose personal life is almost entirely absent from public reporting. This article therefore focuses on what can actually be documented: his standing in the profession, the cases in which he is recorded as counsel, and the limits of what is known. Earlier versions of this page carried a nickname and education claims that we could not source, and we have removed them.

Quick Facts

Who he is

Court records identify him as Mr. Harrison Kinyanjui, appearing before the High Court and the Court of Appeal. A Nairobi business listing shows his firm as J. Harrison Kinyanjui & Co. Advocates, and Kenya Law lists a constitutional petition filed in his own name, Kinyanjui v Attorney General & another, Petition 74 of 2011, which produced rulings in 2012 and a judgment in 2016. We did not read the full judgment, so we do not describe what the petition was about.

In legal journalism he is best known as a litigator, meaning a lawyer who argues cases in court rather than mainly advising clients. His reputation is therefore built on cases, which are public, rather than on interviews, which are rare.

How he is regarded by peers and the press

In March 2025, Tuko reported that The Lawyer Africa had named him among 350 lawyers in the fourth edition of its Top Litigation Lawyers list. Its publisher, advocate Paul Musyimi, was quoted as saying that he “goes all in every matter he takes for a client” and has “a well-earned reputation for being very thorough in his preparation.” The same article says he has done this consistently “for the last three decades.”

That description is an opinion from a publisher who compiles a ranking, not a neutral audit. Readers should treat it as informed praise, not as proof of case outcomes. It is nonetheless the most direct public assessment of his practice that we found.

The Waititu degree dispute

One of his better-known engagements concerned Ferdinand Waititu, who later became Kiambu governor. Tuko reports that William Kabogo, then a rival and later a Cabinet Secretary, filed a case questioning the validity of Waititu’s Punjab University degree. According to Nairobi Wire in January 2017, Kinyanjui acted for Waititu, and in December 2016 High Court judge Joseph Onguto dismissed the suit, saying it was not within the court’s jurisdiction. Jurisdiction is a technical question, namely whether a particular court has the legal power to hear a dispute. The ruling therefore ended the case without the court deciding whether the degree was genuine.

Nairobi Wire also reported a later bill of costs of about 50.9 million shillings filed on Waititu’s behalf against Kabogo, with Kinyanjui arguing that the court should consider the work involved. We have not seen how that costs claim was resolved.

Cases at the Court of Appeal

Kenya Law publishes two Court of Appeal decisions in which he is recorded as counsel for Waititu. In Waititu & 4 others v Attorney General & 9 others (29 July 2016), he argued that a High Court judge had erred by issuing a restricted order and failing to weigh the competing rights properly in the context of demonstrations. The Court of Appeal found the application lacked merit and dismissed it.

In Waititu v Mureithi & 2 others (22 June 2018), he appeared for the appellant, who challenged a High Court decision nullifying his appointment as chairman of the Athi Water Services Board. The three-judge bench allowed the appeal and dismissed the original petition. It held that the High Court had jurisdiction in principle, but that the petition was not properly pleaded and that the petitioner lacked standing because he was driven by a personal dispute. These two cases show a mixed record, which is normal for any litigator, and they illustrate the range of constitutional and procedural issues he handles.

The 2021 vaccination directive case

He drew wider attention in December 2021. Tuko reports that, acting for activist Enock Aura, he obtained court orders suspending a government directive that required proof of COVID-19 vaccination to access certain services, an order that targeted a directive from then Health Cabinet Secretary Mutahi Kagwe. International outlets including Al Jazeera reported the High Court’s suspension on 14 December 2021. Our research indicates that the order was conservatory, meaning temporary and issued pending a full hearing, so it should not be described as a final ruling on the policy. We did not verify the final outcome of the case.

What his work shows about Kenyan litigation

Taken together, the public record points to a practice centred on constitutional petitions, politically sensitive disputes and procedural arguments such as jurisdiction and standing. That is useful context for anyone trying to understand why such lawyers appear in the news: in Kenya, constitutional questions are often tested in the High Court and then pushed up to the Court of Appeal, and the same advocate may follow a client across several of them.

Privacy and what we left out

Many websites publish names of a spouse and children for public figures. For Kinyanjui, we could not find any reliable reporting on his family, schools or university, so we do not include them. An earlier version of this page repeated a nickname about his courtroom style, but we found no reputable source and removed it. We also decided not to cover private commercial disputes with clients, which are not necessary to understand his professional standing.

How to check his record yourself

Because so little is written about him personally, the most reliable way to follow his work is through primary records. Kenya Law publishes judgments online, and each carries a neutral citation such as [2018] KECA 493 (KLR), where the letters show the court and the number identifies the decision. Searching for his name together with a client or case number will show where he is recorded as counsel, and the text of each judgment states who appeared and what the court ordered. This is far more dependable than social media summaries, which often mix up lawyers with similar names.

What we could not verify

• Education and date of birth.
• Family members and relationships.
• Net worth and income. No credible source exists.
• The subject and outcome of his own 2011 constitutional petition.
• The final result of the vaccination directive case and of the Waititu costs claim.

Sources

• Tuko.co.ke
• Nairobi Wire
• Kenya Law
• Al Jazeera
• Yellow Pages Kenya