Public-Private Partnership refers to an approach which combines positive aspects of Public and private sectors to come up with better public service delivery model. The PPP arrangements neither appear uniformly nor apply in all circumstances. The study investigated whether or not, through water sector reforms PPP has been realized in the provision of water services in Kenya. Using Public choice theory the study used secondary data and primary data from seven (7) Focus Group Discussions, and 33 Key informant interviews. From seven (7) WSPs, the study found out that PPPs exist in regulation, provision and financing of water services and that in Kenya, PPPs have been incorporated more by the community water projects than the Public water companies.