The use of implantation of allograft tissue in sports medicine has risen steadily over the last decade. Allograft tissues offer several advantages over autografts, including reduced donor-site morbidity and decreased operative time, and in some instances, no autograft option exists. However, with allografts, there is a small risk of disease transmission, immunologic rejection, and decreased biologic incorporation. Several techniques to limit these pitfalls and maximize graft incorporation are available, however. This chapter takes an in-depth look at the biology of allograft incorporation and how these techniques affect graft incorporation.