The authors describe 3 cases of gastric leiomyoma which they observed in the ten-year period 1980-1990. The most important aspects of this pathology are illustrated, emphasizing on one hand the slight incidence, also due to their underestimation, the seat represented by the body and gastric antrum, the asymptomatic submucosal growth or with atypical symptomatology; on the other hand, the low malignant potential linked above all to the voluminous bulk of the neoplasm.