The meniscus has several roles that contribute to knee function. Many clinical studies have documented the detrimental effects of loss of meniscus function. Meniscal repair is recommended when technically and anatomically feasible to preserve meniscal function. Techniques for meniscal repair can be used to transplant meniscal allografts. Animal studies have documented that meniscal allografts can heal in the recipient. There are few clinical studies of meniscal allograft transplantation in humans. Indications, techniques, results, and complications of meniscal allograft transplantation in humans are described.