Chondroma is a remarkably rare lesion of the oral soft tissues. Most previously reported chondromas of this area have been associated with varying percentages of fibrous, adipose or bone tissues, and the occurrence of such neoplasms exclusively composed of chondromatous tissue is exceedingly rare. We report the clinicopathological features of a pure chondroma of the dorsum of the tongue, occurring in a 51-year-old woman and discuss the possible origin of the tumour.