A new species of Aloe (Asphodelaceae) in Kenya is described as A. sergoitensis L.E. Newton and compared with A. elgonica. Aloe sergoitensis differs from A. elgonica by having forked teeth along its leaf margins, less densely-flowered racemes, and coral-red flowers that are smaller than those of A. elgonica. Its leaves are longer and have a slight bluish bloom.