"Academic inbreeding"--involving the appointment of faculty members who graduated from the institution employing them--is considered a small and peripheral aspect of the academic profession but is quite widespread globally. This paper analyzes the nature of inbreeding and its impact on universities. Data from eight countries where inbreeding is widespread are analyzed in order to examine the perceived impact of the phenomenon on academics and universities. Our analysis reveals that while inbreeding has deleterious effects on universities, it is widely perceived as a "normal" part of academic life--and some positive aspects are evident.