ISishayamthetho saKwaZulu-Natali (IsiNgisi: KwaZulu-Natal Provincial Legislature) siyisigungu sokuqala semithetho esifundazweni saseNingizimu Afrika iKwaZulu-Natali. Kuyinto engachemile ekwakhiweni kwayo, futhi ikhetha uNdunankulu nekhabhinethi yesifundazwe phakathi kwamalungu eqembu eliphambili noma umfelandawonye ePhalamende.