Heber Williams Viera da Silva is a Uruguayan sprinter who has been prominent in South American sprints since the turn of the century. He competed at the Summer Olympics in 2000, 2004 and 2008, being knocked out in the heats each time.

Athletics events at the 1998 South American Games were held at the Coliseo Mayor de Deportes Jefferson Pérez next to the Estadio Alejandro Serrano Aguilar in Cuenca, Ecuador, between October 26–30, 1998. A total of 45 events were contested, 24 by men and 21 by women. Brazil and Venezuela did not participate in the athletics events.