The purpose of this chapter is to present and analyze potential risks connected with knowledge that organizations operating in the sharing economy might potentially face. The chapter concentrates on knowledge risks resulting from the characteristics of the sharing economy, which encourages individuals and organizations to share their goods and services with each other. Sharing, however, does not only lead to benefits, but to risks as well. Against this background, the chapter discusses such risks as: risk of knowledge loss, risk of knowledge leakage, risk of knowledge spillover, or knowledge outsourcing risks. Apart from the examination of knowledge risks, it also discusses knowledge types, potential sources of the risks and controllability/influence on companies. The chapter contributes to a better understanding of the knowledge risks faced by organizations operating in the sharing economy, their characteristics and relations. The proposed list of knowledge risks in conjunction with the mentioned characteristics can be viewed as a promising step to a rigor development of this field of research, which in turn will complement our understanding of knowledge management.