A revision of the 17 species of Urochloa Beauv. (Gramineae) in Malesia is given. Because Brachiaria (Trin.) Griseb. has been nearly completely reduced to Urochloa, 3 new combinations are proposed. A new combination is also required for Urochloa paspaloides Presl. Brachiaria eruciformis (J.E. Sm.) Griseb. has been introduced in a few places in Malesia.