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Yeasts were identified from antarctic soil samples. Cryptococcus and Aureobasidium were widely dis tributed and were found in the dry valleys. Fewer yeast species were identified from antarctic soils than have been reported previously from aquatic antarctic samples. In some antarctic soils, yeasts were the dominant microbial populations. Yeasts from antarctic soils have adaptative features that would allow them to grow and survive under harsh antarctic conditions, but we did not identify 'unique' species of yeasts that do not occur in other regions.