A review of the evidence for a Younger Dryas-equivalent climatic reversal in the tropical Andes shows that a number of hypotheses need to be reassessed. Assumptions of the El Abra cold and humid phase in Colombia are compromised by insufficient dating control. Periods of glacier advance in Peru and Bolivia lack sufficient dating control to be correlated with the European Younger Dryas. Only glaciers on the Quelccaya Ice Cap in Peru may have advanced shortly before the onset of the European climatic reversal, but even there a correlation is questionable. A late-glacial advance in the Chimborazo area in Ecuador is considerably older than previously suggested. The same glacier advance has been dated to earlier than 12,000 BP in other areas of Ecuador. The emerging picture suggests two phases of glacier advances in the tropical Andes: 13,000-12,000 BP and 9000-10,000 BP. Both may have been caused by increasing precipitation. Unequivocal evidence for a cold Younger Dryas event in the tropical Andes has yet to emerge.