IMumbuni High School (eyaziwa nangokuthi iMumbuni Secondary School ) isikole eKenya esise-ukusuka edolobheni iMachakos.Ingesinye sezikole ezinkulu eMachakos County esinabafundi abangaphezu kuka-800. Isikole saqalwa ngo-1965 ngaphansi koxhaso lwe- Africa Inland Church (AIC) esizeni esiseduze neScott Theological College futhi sathuthela endaweni esikuyo njengamanje ngo-1975. Lesi sikole besinamakilasi ezinga lika "A" ngesikhathi sohlelo lwangaphambili lwezemfundo.Ikilasi lokugcina lika-A libhale izivivinyo ngo-1989. Lesi sikole sasivame ukuba yisikole esixubekile kodwa ngoFebhuwari 7, 2005, amantombazane adlulela ngaphesheya komgwaqo aya esikoleni sawo, iMumbuni Girls High School. Isikole sisabalala ngaphezu kwamahektare angama-32. Isikole sibe nothishanhloko abayisithupha: uMnu Simon Mwatu (1965–1969), uMnu Daniel K. Mulwa (1969–1986), uMnu Benedict Kavita (1986-1996), uMnu Timothy Mwove (1996–2003), uMnu. Julius Kasuni (2003–2008), Mnu Mutiso Wambua (2009-2017), Mnu Peter Nzioka usekhonze kusukela ngo-Agasti 2017. UDaniel "Churchill" Ndambuki, ababengamalungu amabili ephalamende laseKenya, uMutinda Mutiso noDaudi Mwanzia.UMercy K. Wambua oyi-Chief Executive Officer ye-Law Society of Kenya, u-Noor Ahmed Mohamed waseMelika wase-Afrika ngo-2030 baphakathi kwabaphangi balo.