The authors studied 400 dry skulls of adult Brazilian individual (135 females and 265 males) beloging to the collections of the laboratories of Descriptive and Topographic Anatomy of the São Paulo School of Medicine and the Medical School of the University of São Paulo. Metopism was observed in 11 skulls (2.75%, 4 females and 7 males). Incomplete metopic suture was present in 115 skulls (28.75%, 27 females and 88 males). The form of metopic suture was mainly linear (64.35%). The presence of metopism must be remembered, for instance, in skull fractures.